Έγκριση τροποποίησης του Κώδικα Διαχείρισης του αγωγού Interconnector Greece-Bulgaria Pipeline (IGB) σύμφωνα με την κοινή Απόφαση των Ρυθμιστικών Αρχών Ελλάδας και Βουλγαρίας signed by Ministry Minist

Art. 36

of the Directive 2009/73/EC of the European parliament and of the Council of 13 July 2009 concerning common rules for the internal market in natural gas and repealing Directive 2003/55/EC (Directive 2009/73/EC) for the Interconnector Greece-Bulgaria”, as foreseen by Article 36 of the Gas Directive 2009/73/EC. Consequently, two supplementary documents have been submitted to the Authorities: “Integration of the assessment of the criteria for grant of exemption after performance of the Market Test (art. 36.6)” in October 2017, following request for additional information by the National Regulatory Authorities, and “2nd Integration of the assessment of the criteria for grant of exemption after performance of the Market Test (art. 36.6)” in April

2. On May 29th 2018, EWRC and RAE (hereinafter, the “Authorities”) decided on the exemption of the IGB pipeline from the requirements regarding third party access, tariff regulation and ownership unbundling for a period of 25 years, adopting the common document “Joint Opinion of the Energy Regulators on the Exemption Application of ICGB AD”, with their decisions Nº R-VO-1 of 29.05.2018 and 483/2018, respectively. Both decisions were notified to the European Commission.
3. On July 25th 2018, the Commission adopted its decision [C

the Final Joint Decision, especially the terms and conditions set forth in sections 4.2, 4.3 and 4.4 thereof. b.

Regulation (EC) 715/2009, applying the principles of capacity allocation and congestion management foreseen. More specifically, surrender, Long-Term Day-Ahead Use-It-Or-Lose-It (LT-UIOLI) and Firm Day-Ahead Use-It-Or-Lose-It (FDA-UIOLI) procedures are in place, as well as rules for secondary trading. c.

Commission Regulation (EU) 2017/459 of 16 March 2017 establishing a network code on capacity allocation mechanisms in gas transmission systems and repealing Regulation (EU) No 984/2013 for the non-exempted capacity. That is, at the Interconnection Points with the systems operated by DESFA, TAP and Bulgartransgaz, the non-exempted part of the capacity will be auctioned according to the ENTSOG calendar with the foreseen auction algorithms, with all products offered and 10% of the capacity reserved for short-term products. d.

Commission Regulation (EU) No 312/2014 of 26 March 2014 establishing a Network Code on Gas Balancing of Transmission Networks, a VTP is foreseen to which all users have access. The balancing and information rules and neutrality arrangements are in place. e.

Commission Regulation (EU) 2015/703 of 30 April 2015 establishing a network code on interoperability and data exchange rules, the required provisions for maintenance planning, cooperation and coordination with the adjacent TSOs are included. 15. Furthermore, the Authorities believe that the IGB Network and Tariff Codes introduces no discrimination between Users and foresee the provision of services on an equal treatment basis, without prejudice to the exemption as decided in the Final Joint Decision. Based on the above, the Authorities jointly 1. Approve, to the extent of their capacity, the “IGB Network Code”, including the “IGB Tariff Code”, the “Gas Transportation Agreement” and the “Virtua; Trading Point Agreement” as annexes, as proposed by ICGB AD and attached hereto as APPENDIX. -5- ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 2. The Authorities strongly encourage ICGB AD to: i.review the congestion management procedures after one year of operation, when enough operational data will be available for their evaluation. ii.review the offer of within-day capacity products, when they become available upstream. iii.review the balancing procedures. APPENDIX -6- ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 IGB NETWORK CODE ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 TABLE OF CONTENTS 1. IGB NETWORK CODE ............................................................................................................ 1 1.1 Scope and Background ................................................................................................. 1 1.2 Governing Law ............................................................................................................. 1 2. DEFINITIONS ........................................................................................................................... 2 3. REGULATORY FRAMEWORK ........................................................................................... 18 4. 5. 6. 7. 8. 9. 3.1 The European regulatory framework .......................................................................... 18 3.2 Cross-border and exempted context............................................................................ 18 INFORMATION PUBLICATION AND DATA EXCHANGE ............................................. 20 4.1 Publication by the ICGB ............................................................................................. 20 4.2 IGB Digital Support .................................................................................................... 20 IGB PIPELINE DESCRIPTION ............................................................................................. 22 5.1 Interconnections with TSOs........................................................................................ 22 5.2 Interconnection Points, Entry Points and Exit Points ................................................. 22 5.3 Technical characteristics ............................................................................................. 23 EXEMPTED CAPACITY, RESERVED CAPACITY, BOOKED CAPACITY .................... 24 6.1 Exempted Capacity ..................................................................................................... 24 6.2 INC obligations in relation to the Exempted Capacity ............................................... 24 6.3 Exempted Capacity from COD for a period of 25 years............................................. 24 6.4 Reserved Capacity ...................................................................................................... 24 6.5 Booked Capacity ......................................................................................................... 25 CAPACITY PRODUCTS OFFERED AND RELATED SERVICE ....................................... 26 7.1 Firm Forward Flow ..................................................................................................... 26 7.2 Firm Reverse Flow...................................................................................................... 26 7.3 Interruptible Forward Flow ......................................................................................... 27 7.4 Interruptible Reverse Flow ......................................................................................... 27 7.5 Entry Point Specification ............................................................................................ 27 7.6 Services provided by the ICGB .................................................................................. 27 INTERRUPTIONS ................................................................................................................. 30 8.1 Interruptions in provision of the Transmission Services ............................................ 30 8.2 Interruption procedure ................................................................................................ 31 REGISTERED PARTIES ........................................................................................................ 32 9.1 Access to the services by the ICGB ............................................................................ 32 9.2 Minimum requirements .............................................................................................. 32 9.3 Acceptance of a Registered Party ............................................................................... 33 9.4 Material Change in Registered Party`s Circumstances ............................................... 33 1 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 9.5 10. 11. 12. IGB BOOKING PROCEDURE .............................................................................................. 35 10.1 Dominant players’ booking limitations according to the Exemption Decision .......... 35 10.2 Available Capacity to be booked ................................................................................ 35 10.3 Booking Procedure ..................................................................................................... 36 10.4 Virtual Trading Point .................................................................................................. 38 10.5 Change of Natural Gas supplier .................................................................................. 39 NETWORK USER’S AWARD ............................................................................................... 41 11.1 Types of algorithms .................................................................................................... 41 11.2 Ascending clock auction algorithm (ACAA).............................................................. 41 11.3 Uniform-price auction algorithm (UPAA).................................................................. 41 CONTRACTUAL ARRANGEMENTS .................................................................................. 42 12.1 13. 14. 15. 16. Cancellation of Registration ....................................................................................... 34 Types of contractual arrangements ............................................................................. 42 NOMINATION AND MATCHING PROCESS ..................................................................... 43 13.1 Network User’s obligations ........................................................................................ 43 13.2 Daily Nomination ....................................................................................................... 43 13.3 Matching Process ........................................................................................................ 44 13.4 Re-nomination ............................................................................................................ 45 13.5 Content of the Network User’s Daily Nomination and Re-nomination...................... 45 13.6 Rejection of the Network User’s Daily Nomination and Re-nominations ................. 45 CONGESTION MANAGEMENT PROCEDURES ............................................................... 47 14.1 General ........................................................................................................................ 47 14.2 Capacity surrender ...................................................................................................... 47 14.3 Secondary market – capacity trading .......................................................................... 48 14.4 Long Term Use-It-Or-Lose-It (LT-UIOLI) provisions ............................................... 52 14.5 Firm Day-Ahead Use-It-Or-Lose-It (FDA-UIOLI) mechanism ................................. 56 VARIABLE COSTS ................................................................................................................ 58 15.1 General ........................................................................................................................ 58 15.2 Compressor Station characteristics and cost charge ................................................... 58 15.3 ICGB’s notice for Fuel Gas ........................................................................................ 58 15.4 ICGB’s notice for Electrical Consumption ................................................................. 58 15.5 ICGB’s compensation for Line-pack Gas, Unaccounted Gas and Gas Losses make-up .................................................................................................................................... 58 BALANCING .......................................................................................................................... 60 16.1 Balancing according to NC BAL ................................................................................ 60 16.2 Operational balancing according to NC BAL ............................................................. 60 16.3 IGB Pipeline balance .................................................................................................. 60 2 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 17. 18. 19. 20. 21. 22. 23. 16.4 Network User balance and imbalance equation .......................................................... 60 16.5 Neutrality Arrangements............................................................................................. 62 16.6 Provisional Network User allocation and Final Allocation ........................................ 63 16.7 Measurement unavailability ........................................................................................ 64 16.8 Final Allocation .......................................................................................................... 65 ALLOCATION ........................................................................................................................ 67 17.1 Commingling .............................................................................................................. 67 17.2 Allocation Principles................................................................................................... 67 17.3 Allocation at Virtual Trading Point ............................................................................ 67 17.4 Allocation at the Exit Point(

1. s)to the Distribution and/or Other System(
2. s)................ 67 TAXES AND DUTIES ............................................................................................................ 69 18.1 Network User's liability for Taxes .............................................................................. 69 18.2 Custom duties ............................................................................................................. 69 MONTHLY FEE .................................................................................................................... 69 19.1 General ........................................................................................................................ 69 19.2 Network User's obligations ......................................................................................... 69 19.3 Failure by the ICGB .................................................................................................... 70 TRANSMISSION TARIFFS ................................................................................................... 71 20.1 Transmission Tariff formulae ..................................................................................... 71 20.2 Exempted Transmission Tariff and Reserve Price ...................................................... 71 20.3 Transmission Tariff revision conditions ..................................................................... 71 INVOICING AND PAYMENT .............................................................................................. 72 21.1 Invoicing ..................................................................................................................... 72 21.2 Payment ...................................................................................................................... 72 21.3 Disputed Amounts ...................................................................................................... 73 21.4 Deductions .................................................................................................................. 73 QUALITY AND OFF-SPECIFICATION GAS ...................................................................... 76 22.1 General ........................................................................................................................ 76 22.2 Gas Pressure at the Entry Point(
3. s)and the Exit Point(s)............................................. 76 22.3 Reference Conditions for Gas quality parameters and specifications ......................... 77 22.4 Gas quality parameters................................................................................................ 77 22.5 Entry Point Specification ............................................................................................ 78 22.6 Off-Specification Entry Gas ....................................................................................... 78 22.7 Off-Specification Exit Gas.......................................................................................... 79 METERING AND MEASUREMENT .................................................................................... 80 23.1 General ........................................................................................................................ 80 3 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 24. 25. 26. 27. 28. 29. 23.2 Metering Stations ........................................................................................................ 80 23.3 General Measurement Provisions ............................................................................... 81 23.4 Defining Parameters and Measurement Data.............................................................. 82 LIMITATION OF LIABILITY ............................................................................................... 85 24.1 Limitation of Liability ................................................................................................ 85 24.2 Limitation of liability exclusions ................................................................................ 85 24.3 Network User’s liabilities ........................................................................................... 86 24.4 The ICGB’s liabilities ................................................................................................. 86 24.5 Amount of damages .................................................................................................... 87 24.6 Mitigation measures .................................................................................................... 87 24.7 Sole remedy ................................................................................................................ 87 TERMINATION ...................................................................................................................... 88 25.1 The ICGB’s Termination ............................................................................................ 88 25.2 Network User’s Termination ...................................................................................... 88 25.3 Failure to Transfer the Contract Quantity to the ICGB .............................................. 89 25.4 Proposed termination date notice ................................................................................ 89 25.5 Right of suspension ..................................................................................................... 90 25.6 Amounts Due .............................................................................................................. 90 25.7 Effect of Termination.................................................................................................. 90 TITLE, RISK AND INSURANCE .......................................................................................... 92 26.1 Title, Risk and Insurance ............................................................................................ 92 26.2 Network User’s warranties in relation to Gas ............................................................. 92 26.3 Network User’s insurance and ICGB´s insurance ...................................................... 92 WARRANTIES AND COVENANTS .................................................................................... 93 27.1 The ICGB’s warranties ............................................................................................... 93 27.2 ICGB´s covenants ....................................................................................................... 94 27.3 Network User’s warranties ......................................................................................... 95 27.4 Network User’s covenants .......................................................................................... 95 27.5 Mutual warranties ....................................................................................................... 96 27.6 Mutual covenants ........................................................................................................ 96 SANCTIONS ........................................................................................................................... 98 28.1 Sanctions ..................................................................................................................... 98 28.2 Obligations .................................................................................................................. 98 NETWORK USER CREDIT SUPPORT ................................................................................ 99 29.1 Network User Credit Support – Exempted Network Users ........................................ 99 29.2 Bank Guarantee – Exempted Network Users ............................................................. 99 4 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 29.3 30. 31. 32. Network User Credit Support – Non-Exempted Network Users .............................. 100 FORCE MAJEURE EVENT ................................................................................................. 106 30.1 Force Majeure Event definition ................................................................................ 106 30.2 Limitation of Force Majeure Event........................................................................... 106 30.3 Limitation on obligation relief .................................................................................. 106 30.4 Notification and Force Majeure Event estimation .................................................... 107 30.5 GTA Termination due to a Force Majeure Event ..................................................... 107 30.6 Ancillary Contract Termination due to a Force Majeure Event ................................ 108 30.7 Amounts Due ............................................................................................................ 108 EMERGENCY ...................................................................................................................... 109 31.1 Emergency Procedure ............................................................................................... 109 31.2 Suspension of the Transmission Services in case of Emergency .............................. 109 31.3 Suspension of the VTP access and use in case of Emergency .................................. 109 CHANGE IN LAW................................................................................................................ 110 32.1 Change in Law Notice .............................................................................................. 110 32.2 Adjustments to this INC, the GTA or the Ancillary Contract .................................. 110 ANNEX A - TRANSMISSION TARIFF CODE ............................................................................... 111 ANNEX B - BOOKING LIMITATION ACCORDING TO EXEMPTION DECISION .................. 112 ANNEX C – GAS TRANSPORTATION AGREEMENT ................................................................. 114 ANNEX D - VTP AGREEMENT………………………………………………………………...….115 5 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 1. IGB NETWORK CODE 1.1 Scope and Background This document and its Annexes constitute the IGB Network Code (INC) of the Natural Gas transportation facilities of the IGB Pipeline and is the “IGB Network Code” referred to in section 4.4.1 of the Exemption Decision. The relevant definitions thereto are contained in Article 2. These INC provisions include the set of rights and obligations of the ICGB, the Network Users and the Registered Parties in relation to the Transmission Services on the IGB Pipeline and the access to and use of the VTP. This INC forms an integral part of a Gas Transportation Agreement and a VTP Agreement. Without limiting generality of Article 1.1.2, each Registered Party as well as each Network User is subject to the provisions of the INC applicable to it. This INC has been assessed against the provisions of (
4. i)the Exemption Decision and (
5. ii)any existing co-operation agreements related to interconnection and interoperability executed between the ICGB and Adjacent TSOs. This INC has been approved by the National Regulatory Authorities.

the Exemption Decision, this INC shall continue in force, as amended from time to time, for twenty-five

the laws of England and Wales, excluding any rules or principles (such as rules on conflicts of laws), that would require application of the laws of another jurisdiction to this INC or any matter arising under it. For the avoidance of doubt, mandatory provisions of the relevant Applicable Law shall prevail. Disputes If a Dispute arises, the Parties agree that management from each Party (with due regard to conflicts of interest impacting individual members of such management) shall meet and negotiate in good faith to seek a resolution to such Dispute. If negotiations do not resolve the Dispute: 1 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 (a) with respect to matters to be determined by the Expert, within two

article 11.2 of NC CAM (Ascending clock auction algorithm), the price announced for the last bidding round in which an auction closes, except where the aggregate demand across all Users is greater than the Available Capacity offered in a bidding round with a price equal to that which led to the first-time undersell, in which case it shall be the price that led to the first-time undersell. ACER Yearly Monitoring Report means the report described in Article 14.1.2. Adjacent TSOs means, TAP, DESFA and Bulgartransgaz EAD. Affiliate means, with respect to a Party, any Entity Controlled, directly or indirectly, by that Party, any Entity that Controls, directly or indirectly that Party or any Entity directly or indirectly under the common Control of a Party. Agreed Interest Rate means interest (compounded monthly), at a rate equal to the arithmetic mean of the daily quotation of the three

Article 16

.4.3) that a Network User needs to pay (or, as it may be, is entitled to receive), in respect of Daily Imbalance Quantity, which amount is always different than zero. Daily Imbalance Quantity has the meaning given to it in Article 16.4.

1. Daily Quantity means for each Network User, the sum of all Confirmed Quantities for each Network User as a result of the Matching Process set under Article 13.
2. Day means a period of twenty-four

the Exemption Decision, corresponding to the values set out in Article 6.3. Exempted Network User means a Network User which has executed an ARCA with ICGB after having been awarded capacity on the IGB Pipeline during the IGB Market Test. An Exempted Network User and the Network User have the same obligations under this INC unless explicitly stated otherwise herein. Exemption Decision means the Joint Decision of May 2018 as amended by the Final Joint Decision PB-O-2 on 8th August 2018 jointly issued by RAE and EWRC, upon the Decision n. C

Article 9

) in order to use some or all of the Transmission Services, as amended and/or restated from time to time (see ANNEX C). Gas Year means a period beginning at the start of the first Gas Day in October of each calendar year and ending at the end of the last Gas Day in September of the following calendar year, except that the first Gas Year will start at the start of the first Gas Day on which the ICGB provides the Transmission Services to a Network User

a Gas Transportation Agreement. Governmental Authority means any national or local government, any regulatory or administrative agency, commission, body or other authority, and any court or governmental tribunal lawfully exercising jurisdiction over this INC, the GTA (if any), the Ancillary Contract(s) (if any), the Network User’s Facilities and/or the ICGB’s Facilities. GCV means the amount of heat that would be released by the complete combustion of one Nm3 of Natural Gas in air and all products of the combustion are returned to the same specified temperature (25°C) as that of the reactants, all of these products being in the gaseous state except for water formed by combustion, which is condensed to the liquid state at 25°C. ICGB means ICGB AD, a company incorporated under Bulgarian law, registered in the Commercial Register at the Registry Agency under the number UIC 201383265. ICGB Approvals means all Approvals required from any Governmental Authority of Greece or Bulgaria concerning the design, construction, installation, commissioning, maintenance, repair, and operation of ICGB's Facilities. ICGB’s Annual Plan means the programme prepared and issued by ICGB on an annual basis,

Article 4.1.1.

ICGB's Facilities means the Gas reception, transportation, and delivery facilities of the IGB Pipeline that are located between the Entry Point and the Exit Point and are necessary to transport Gas to the Exit Point under this INC and the relevant GTA. IGB Digital Support means the system described in Articles 4.2 and 7.6.5. 8 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 IGB Intergovernmental Agreement means the intergovernmental agreement relating to the IGB Pipeline (to

1. be)entered into between the Government of the Republic of Bulgaria and the Government of the Republic of Greece. IGB Market Test means the market test conducted between October 2015 and March 2017 by the ICGB within the procedure for obtaining the Exemption Decision and which allowed Exempted Network Users to book Reserved Capacity in advance without participating in the procedure pursuant to Article 10. IGB Minimum Capacity means the specific hourly volumes of Gas transportable by the IGB Pipeline on an annual basis. It is nominally set in forward mode at approximately 380,517 Nm3/h/y. ICGB shall use a load factor = 0.9 at COD. IGB Pipeline means the gas interconnector and the related facilities connecting the Greek and Bulgarian Natural Gas transportation systems from Komotini (Greece) to Stara Zagora (Bulgaria), developed, designed, financed, built, owned and operated by ICGB AD (the ICGB). It shall be connected initially with the Bulgartransgaz EAD, DESFA and TAP systems, as well as the Distribution and/or Other System(
2. s)and thereafter with such further other systems as may be determined

any applicable NRA frameworks. IGB Technical Description means the technical description as it will be published on the ICGB website and whose content is described in Article 5.3 set here forth. Industrial Client means a Person who uses Natural Gas in technological or production processes or for non-household purposes. Insolvency Event means in respect of a Party: (

1. a)dissolution (other than pursuant to a consolidation, amalgamation or merger); (
2. b)becoming insolvent or unable to pay its debts or fails or admits in writing its inability generally to pay its debts as they become due; (
3. c)an arrangement or composition with or for the benefit of creditors (including any voluntary arrangement) being entered into by or in relation to the Party; (
4. d)a receiver, administrator, administrative receiver or other encumbrance taking possession of or being appointed over, or any distress, execution or other process being levied or enforced (and not being discharged within ten

Article 18.1 and article 6.1 of 0.

Monthly Statement has the meaning given to it in Article 21.1.1. National Regulatory Authority(

1. s)or NRA(
2. s)means the Regulatory Authority for Energy of Greece (RAE) and the Energy and Water Regulatory Committee of Bulgaria (EWRC). Natural Gas or Gas means gaseous hydrocarbons or a mixture of gaseous hydrocarbons corresponding with the Gas Characteristics as set out in Article 22 and being transported by the IGB Pipeline. Gas Characteristics may vary

the allowable ranges set out in the Entry Point Specification. Natural Gas Customer means a DSO or an Industrial Client that has entered into a Natural Gas Supply Contract. 11 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 Natural Gas Supply Contract means an agreement on supply of Natural Gas between the Natural Gas Customer and the Network User that envisages the Exit Point to the Distribution and/or Other System(s) as the delivery point. NC BAL means Commission Regulation (EU) No 312/2014 of 26 March 2014 establishing a Network Code on Gas Balancing of Transmission Networks, as such may be amended, supplemented or replaced from time to time. NC CAM means Commission Regulation No (EU) 2017/459 of 16 March 2017 establishing a network code on capacity allocation mechanisms in gas transmission systems and repealing Regulation (EU) No 984/2013, as such may be amended, supplemented or replaced from time to time. NC TAR means Commission Regulation (EU) 2017/460 of 16 March 2017 establishing a network code on harmonised transmission tariff structures for gas, as such may be amended, supplemented or replaced from time to time. Net Measured Quantities means the quantity of Natural Gas in kWh measured over a specified period at an Interconnection Point, as determined by the Measurement Equipment, adjusted at that Interconnection Point. Network User means a natural person or a legal entity who has become a Registered Party

Article 9

, for the purpose of: (

1. a)using some or all of the Transmission Services and/or (
2. b)accessing the VTP and trading Natural Gas at the VTP. Network User Approvals means all Approvals, if required or applicable, from any relevant governmental authority or institution concerning the Network User's obligations under its GTA (if any). this INC and Ancillary Contract(
3. s)(if any) and the transactions contemplated thereunder and hereunder. Network User Credit Support means the types of guarantees referred to in Article 29. Network User Credit Support Period means: (
4. a)in relation to the Exempted Network Users, the period commencing on the Signing Date, continuing for the duration of the GTA and being in effect until all claims under this INC and the GTA have been settled or discharged in full (e.g. including any termination payment); or (
5. b)in relation to the Network Users (other than the Exempted Network Users), the period commencing on the date the applicant provided the Network User Credit Support as part of its application to become a Registered Party and continuing until the earlier of: − the date when the applicant´s registration to become a Registered Party has been withdrawn by the applicant; or − the later of: (
6. i)the duration of the GTA (if any) and each Ancillary Contract (if any), and (
7. ii)all claims under this INC, the GTA (if any) and each Ancillary Contract (if any) have been settled or discharged in full (e.g. including any termination payment). Network User Credit Support Requirement means the requirement to provide Network User Credit Support in respect of the Network User's obligation to make payments under this INC, 12 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 the GTA (if any) and each Ancillary Contract (if any) as and when such obligation arises under the terms of this INC, the GTA (if any) and each Ancillary Contract (if any). Network User's Facilities means the Gas delivery and reception facilities upstream of the Entry Point which are necessary for the delivery of Gas at the Entry Point; and downstream of the Exit Point which are necessary to take delivery of Gas at the Exit Point under this INC and the relevant GTA. Neutrality Account means a notional account through which the ICGB shall ensure that it remains financially neutral in respect of its balancing activities. Neutrality Payment Amount has the meaning given to it in Article 16.5.2(a). Nominated Quantity means, in respect of a Nomination Period, the quantity of Gas that has been Nominated or deemed Nominated by the Network User under Article 13.2 (
8. a)for delivery by that Network User to the ICGB at an Entry Point; and (
9. b)for redelivery by the ICGB to that Network User at an Exit Point, and Nominated Quantities shall be construed accordingly. Nomination means the prior notification by a Network User to ICGB of its Nominated Quantities and Nominate or Nominated shall be construed accordingly. Nomination Period means, in respect of each Day, a period during which Network Users can submit nominations. Non-Exempted Capacity means the Available Capacity referred to in Article 3.2.2 and Article 3.2.3. Non-Exempted Network User means a Network User who is not an Exempted Network User. Normal Cubic Meter (Nm3) means the amount of Natural Gas that fills 1m3 of space at a temperature of 0°C with an absolute pressure of 1.01325 bar. Off-Specification Entry Gas means Gas made available for delivery at the Entry Point which does not conform with the Entry Point Specification. Off-Specification Exit Gas means Gas made available for delivery at the Exit Point which does not conform with the Exit Point Specification. Operational Balancing Agreements means agreements executed between the Adjacent TSO and the ICGB that set out the terms and conditions for allocating of the quantities of Gas at each Interconnection Point. Ordinance No. 10 means the ordinance no. 10 of 9 June 2004 on the procedure for introducing limitation regime, suspension or restriction of production or supply of electricity, heat and natural gas issued by the Ministry of Energy of the Republic of Bulgaria and published in the State Gazette of the Republic of Bulgaria. Other Network User means any Person other than the Network User named in a particular gas transportation agreement (or ARCA, in respect of an Exempted Network User) who, at the 13 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 relevant time, is delivering Gas into the IGB Pipeline and/or, as the context requires, is offtaking Gas from the IGB Pipeline. Pair of Network Users means a pair of Network Users (who, for the avoidance of doubt, may be the same Network User) who transfer Natural Gas at the Virtual Trading Point or an Interconnection Point. Partial Change of Supplier has the meaning given to it in Article 10.5.3. Partial Interruption has the meaning given to it in Article 8.1.2. Party means any party bound by this INC, including the Network User, the Registered Party and the ICGB individually; collectively, Parties. Person means any individual, partnership, corporation, association, trust, Governmental Authority, or other entity. Platform means either PRISMA or RBP; jointly, Platforms. Platform Agreement means an agreement on the membership to and/or the use of the relevant Platform (to
10. be)entered into between the Network User (or, as it may be, the Buying Party) and the relevant Platform, as such may be amended and/or restated from time to time. Price Bid means the unit price in €/kWh offered by the Network User at auctions conducted pursuant to Article 10. PRISMA means a capacity booking and trading platform, established and operated by Prisma European Capacity Platform GmbH, including all universal legal successors thereof. Processed Quantity means, in relation to a particular period of time, the quantity of Gas Nominated, or, if applicable, Re-nominated, by a Network User, as may be adjusted by the relevant Party

the provisions of this INC on Nominations and Renominations. Provisional Network User Allocation means the allocation provided to each Network Users on a daily basis by the ICGB pursuant to Article 16.6.

1. RAE means the Regulatory Authority for Energy of Greece. RBP or Regional Booking Platform means a capacity booking and trading platform, established and operated by the Hungarian Gas Transmission System Operator (FGSZ), including all universal legal successors thereof. Reasonable and Prudent Party means a Person (including the Parties) seeking in good faith to perform its covenants or obligations under this INC, the relevant GTA (if any) and all Ancillary Contracts (if any) and in so doing and in the general conduct of its undertaking exercising that degree of skill, care and ability that would reasonably and ordinarily be expected from a skilled and experienced operator and/or network user of a pipeline system similar to the IGB Pipeline complying with all Applicable Laws and engaged in the same type of undertaking under the same or similar circumstances and conditions. Reasonable Efforts means, for any action required to be made, tried, or taken by a Party under this INC, the relevant GTA (if any) and all Ancillary Contracts (if any), the efforts that a prudent Person would undertake to protect its own interests, including commercial interests, taking into 14 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 account the conditions affecting the action, including the amount of notice to act, recognition of the need to act, the duration and type of action, the competitive environment in which the action happens, and the projected benefit, cost and risk to the Party required to take the action. Reference Gas Year means the Gas Year used for congestion management procedure calculation according to Article
2. Registered Party means a natural person or a legal entity who has been registered

Article 9

. Registration Fee means the fee to be paid by the Registered Party pursuant to Article 9. The Registration Fee shall be revised from time to time and published at www.icgb.eu. Re-nomination means a Nomination submitted by a Network User for a particular Gas Day after the deadline for the confirmation of the initial Nomination for that Gas Day, and Renominate shall be construed accordingly. Representative means as regards each Party, and/or its Affiliates if applicable, the person(s) designated by the Party and/or its Affiliates to give and receive notices under this INC, the relevant GTA (if any) and all Ancillary Contracts (if any) and to exercise the rights of the Party under this INC, the relevant GTA (if any) and all Ancillary Contracts (if any). Reserved Capacity means the capacity (expressed in kWh/D) reserved by an Exempted Network User

its ARCA and the Exemption Decision, which may be: (

1. a)the upper limit that an Exempted Network User may Nominate in a Gas Day (Daily Reserved Capacity); (
2. b)the upper limit that an Exempted Network User may Nominate in any Gas Month (Monthly Reserved Capacity); (
3. c)the upper limit that an Exempted Network User may Nominate in any Gas Quarter (Quarterly Reserved Capacity); (
4. d)the upper limit that an Exempted Network User may Nominate in any Gas Year (Annual Reserved Capacity), which, in each case, may be modified

Article 14

. Reserve Price means the unit price used during the first (1st) round of auctions pursuant to this INC in respect of each Capacity Product, conducted

article 7 of 0. RF Capacity means the reverse flow capacity from the Interconnection Point of Stara Zagora to the Interconnection Point(

1. s)of Komotini. This capacity can take a form of: (
2. a)Firm Reverse Flow (FRF) capacity (FRF Capacity); or (
3. b)Interruptible Reverse Flow (IRF) capacity (IRF Capacity). Sanctioned Country means any country or state that is at the relevant time subject to Sanctions. A country or state shall not be deemed to be a Sanctioned Country by virtue of Sanctioned Person(
4. s)being, in the case of individuals, citizens of or residents in such state or country and, in the case of entities and organisations, domiciled or resident in such country or state unless expressly stipulated in the relevant Sanctions. 15 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 Sanctioned Person means any individual, entity, or organisation that is at the relevant time subject to Sanctions and does not benefit from an exemption to the extent that such exemption would remove the effect of the applicable Sanctions for the purposes of the transactions carried out under this INC, the relevant GTA (if any) and all Ancillary Contracts (if any). Sanctions means the economic or trade sanctions, embargoes or restrictive measures of the United Nations, United States of America, European Union or European Union Member States (as amended, modified or replaced from time to time), as applicable in the Republic of Bulgaria and the Republic of Greece. Scheduled Maintenance means, in relation to any of the ICGB's Facilities, the inspection, maintenance, repair, modification or replacement of it. Signing Date means the date on which a GTA is signed by the ICGB and the applicant that, in the ICGB opinion, fulfils all requirements (set out in Article 9) to become a Registered Party (including provision of the Network User Credit Support) and becomes effective

the terms of the GTA. Standard Cubic Meter (Sm3) means a Natural Gas quantity that fills 1m3 at a pressure of 1.01325 bar (standard atmospheric pressure) and at a temperature of 15°C. TAP means an independent Natural Gas TSO of the Greek Natural Gas transmission system incorporated under Swiss law and with whom the ICGB has entered into an Interconnection Agreement and whose network will be physically interconnected with the IGB Pipeline pursuant to Article 5.2.

1. Transmission Tariff means the Exit Point transmission tariff and the Entry Point transmission tariff applicable as determined under articles 4 and 5 of 0 and payable by the Network User to the ICGB under Article 19 of this INC. Tax or Taxes means any tax, charge, fee, levy or other assessment imposed by any Governmental Authority, whether federal, state, local or otherwise; including all income, withholding, windfall profits, gross receipts, business, environmental, value added, capital gain, duties, capital stock, registration, excise, ad valorem, real property, personal property, land, local development, licence, sales, production, occupation, use, service, service use, transfer, payroll, employment, social security (or similar), unemployment, travel, franchise, severance, bonus or other tax of any kind, as well as any charges and assessments (including any interest, penalties or additions to tax due to or imposed on or regarding any assessment, whether disputed or not, but excluding any royalties, over-riding royalties and like charges), and all stamp or documentary taxes and fees. Third Party means any Person other than a Party. Trade Notification means the prior notification by a Network User to the ICGB of its Traded Quantities at the Virtual Trading Point pursuant to Article 10.
2. Traded Quantities means the aggregate quantity of Natural Gas (in kWh per Gas Day) that has been Nominated by a Network User either: (a) for transfer from it to another Network User at the Virtual Trading Point; or (b) for transfer to it from another Network User at the Virtual Trading Point. 16 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 Transmission Period has the meaning given to it in the relevant GTA. The Transmission Period cannot be longer than the exemption period granted by the Exemption Decision (i.e. 25 Years from COD). Transmission Services means the services to be provided by the ICGB under the GTA (including relevant clause(s) of the GTA and clauses of this INC and, in particular, its Article 7.6), which include the transportation of Gas from/to any Entry Point and to/from any Exit Point and any other service as specified in the GTA and this INC. TSO means a transmission system operator. Unaccounted Gas means the quantity of Gas (in Energy units) resulting from make-up necessary for the purpose of compensating measurement tolerance. Unused Capacity means that portion of the Network User’s capacity which is unused by the Network User, as determined

Article 14.5.

UPAA Clearing Price means,

article 18 (Uniform-price auction algorithm) of NC CAM, the price of the lowest successful bid (pursuant to the auction procedure set out in this INC) if the demand exceeds the offer at the Reserve Price. In all other cases, the UPAA Clearing Price shall be equal to the Reserve Price. User means the Network User and/or Other Network Users. UTC means Coordinated Universal Time. Virtual Trading Point or VTP means a virtual point at which Network Users may register Gas trades. Volume Bid means the hourly Gas quantity Nm/h requested by the Network User at auctions conducted pursuant to Article 10. VTP Agreement means an agreement (to be) entered into between ICGB and an applicant as a condition to such applicant becoming a Registered Party, which agreement regulates the access of such Registered Party, as a Network User, to the VTP and may be amended and/or restated from time to time. VTP Minimum Credit Limit means the minimum amount of the Network User Credit Support applicable for the purpose of the Network User´s trading volumes of Gas (buy and sell) at the VTP, as described in Article 29.3.6 of this INC. Week means a period of seven

the Exemption Decision. To this extent, the ICGB is bound by the respective regulatory frameworks of Greece and Bulgaria and by the Exemption Decision. The Exemption Decision prevails over these regulatory frameworks and includes, inter alia, the following provisions: Exemption Period The exemption period shall last twenty-five

the Exemption Decision. Third party access exemption A third-party access exemption is granted in respect of a certain amount of the IGB Minimum Capacity which is allocated to the Exempted Network Users. The following table shows the Exempted Capacity compared to the Non-Exempted Capacity and the IGB Minimum Capacity at COD: Period from Period to Exempted Capacity (Nm3/h/

1. y)Non-exempted Capacity (Nm3/h/
2. y)IGB Minimum Capacity (Nm3/h/
3. y)COD up to 5 years 179.673,55 200.843,45 380.517,00 1st Day of the 6th year up to years 10 173.966.55 206.550,45 380.517,00 1st Day of the 11th year up to years 20 162.551,05 217.965,95 380.517,00 1st Day of the 21st year up to years 25 131.044,05 249.472,95 380.517,00 18 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 Non-Exempted Capacity (
4. a)The ICGB shall make Non-Exempted Capacity available

the regulation of NC CAM. (b) To the extent permitted by the Exemption Decision nothing in this INC precludes an Exempted Network User to book the Booked Capacity

the INC terms and conditions applicable to Non-Exempted Network Users and the Booked Capacity. In such case, subject to fulfilment of all applicable conditions, the Exempted Network User shall enter, as Non-Exempted User, into a separate GTA with the ICGB that regulates the terms and conditions applicable to the Booked Capacity. Transmission Tariff regime FF Capacity and RF Capacity are exempted from the provisions of Gas Directive (as implemented in Bulgaria and Greece), as set out in 0 of this INC and is applicable to all Network Users. 19 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 4. INFORMATION PUBLICATION AND DATA EXCHANGE 4.1 Publication by the ICGB Every six

the regulatory frameworks of Greece and Bulgaria, or (

1. b)following any explicit requests to do so by any TSO (other than the ICGB). 5.2 Interconnection Points, Entry Points and Exit Points In case of the Firm Forward Flow (FFF) and the Interruptible Forward Flow (IFF), the Entry Points and the Interconnection Points in Komotini are the following: Entry Point and Interconnection Point with DESFA The Interconnection Point (D-IP) with DESFA shall be at the location determined by the ICGB and DESFA and the Battery Limits are defined in IGB Technical Description and the Exit Points of the IGB Pipeline are the Exit Points set forth in Article 5.2.3 and Article 5.2.4. Entry Point and Interconnection Point with TAP The Interconnection Point (T-IP) with TAP shall be at the location determined by the ICGB and TAP and the Battery Limits are defined in IGB Technical Description and the Exit Points of the IGB Pipeline are the Exit Points set forth in Article 5.2.3 and Article 5.2.4. Exit Point and Interconnection Point with Bulgartransgaz EAD The Interconnection Point with Bulgartransgaz EAD (B-IP) shall be at the location determined by the ICGB and Bulgartransgaz EAD and the Battery Limits are defined in IGB Technical Description. Exit Point to the Distribution and/or Other System(
2. s)The Exit Points with the Distribution and/or Other System(
3. s)shall be at the location determined by the ICGB and the Battery Limits are defined in IGB Technical Description. Subject to Article 7.2, in case of the Firm Reverse Flow (FRF) or the Interruptible Reverse Flow (IRF), the only Entry Point of the IGB Pipeline is: The Entry Point in Stara Zagora and the Interconnection Point with Bulgartransgaz EAD 22 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 The Interconnection Point with Bulgartransgaz EAD shall be at the location determined by the ICGB and Bulgartransgaz EAD and the Battery Limits are defined in IGB Technical Description and the Exit Points of the IGB Pipeline are the Exit Points set out in Article 5.2.6 to Article 5.2.7. Exit Point in Komotini and the Interconnection Point with DESFA The Interconnection Point with DESFA shall be at the location determined by the ICGB and DESFA and the Battery Limits are defined in IGB Technical Description. Exit Point in Komotini (Greece) at the Interconnection Point with TAP The Interconnection Point with TAP shall be at the location determined by the ICGB and TAP and the Battery Limits are defined in IGB Technical Description. 5.3 Technical characteristics IGB Technical Description is published on ICGB website and contains the following information: (
4. a)Pipeline Geographical Extension; (
5. b)Technical Characteristics; (
6. c)Pressures and Transportation Capacity at Entry and Exit point(s); (
7. d)Control Equipment; (
8. e)Metering Stations and Measurement Procedure; (
9. f)Dispatching Centre; (
10. g)Interconnection Point Battery Limits or Exit Point to the Distribution and/or Other System(
11. s)Battery Limit; (
12. h)Technical and Conditions. Operational Constraints and Boundary 23 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 6. EXEMPTED CAPACITY, RESERVED CAPACITY, BOOKED CAPACITY 6.1 Exempted Capacity The Exempted Capacity shall be contracted by the Exempted Network Users, for the relevant capacity and duration. A Gas Transportation Agreement shall be executed in relation to such Exempted Capacity, provided that the Network User fulfils the requirements set out in Article 9. 6.2 INC obligations in relation to the Exempted Capacity The Exempted Network Users shall comply with this INC to the extent that this INC does not contradict the Exemption Decision. 6.3 Exempted Capacity from COD for a period of 25 years Period from Period to Exempted Capacity (Nm3/h/
13. y)Nonexempted Capacity (Nm3/h/
14. y)COD up to 5 years 179.673,55 200.843,45 1st Day of the 6th year up to 10 years 173.966.55 206.550,45 1st Day of the 11th year up to 20 years 162.551,05 217.965,95 1st Day of the 21st year up to 25 years 131.044,05 249.472,95 The above table shows the amount of Exempted Capacity

the Exemption Decision in different time periods. The profiles of Exempted Capacity vary depending on the expiration of the GTA executed with the Exempted Network Users. 6.4 Reserved Capacity The table set out in Article 6.3 shows the total amount of the Annual Reserved Capacity for the Exempted Network Users. Each Annual Reserved Capacity shall be allocated on a firm basis to the Exempted Network Users

their respective ARCA´s terms and conditions and represents, when used for Nomination purposes (

Article 13), the Daily Reserved Capacity.

The Daily Reserved Capacity shall be used, inter alia, for netting the Available Capacity pursuant to Article 10. Conversion Factors for ARCAs are 10,24 kWh/Nm3 and 24 h/Day. Exempted network users which have reserved capacity in the IGB gas pipeline and have signed a Gas Transportation Agreement, in which they have specified an entry point, have the right to change the entry point in the Republic of Greece, if there is a second entry point in the Republic of Greece. Exempted network users are entitled to one change every ten years, but no 24 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 more than two changes for the duration of the Gas Transportation Agreement. The first ten-year period begins with the date of commercial operation of IGB gas pipeline. Each subsequent period starts from the expiration of the previous one. ICGB, if it is technically feasible and there is free capacity at the given point, may allow a change of the entry point. 6.5 Booked Capacity The Booked Capacity, expressed in kWh/D/y, is the part of Available Capacity allocated to a Network User pursuant to Article 10 and represents, when used for Nomination purposes (

Article 13), the Daily Booked Capacity.

The Exempted Network Users are allowed to participate at the booking procedure to the extent permitted by the Exemption Decision and within the limits set in 0. In case of allocation of capacity to an Exempted Network User, the Exempted Network User and the ICGB shall enter into a separate GTA concerning such capacity. 25 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 7. CAPACITY PRODUCTS OFFERED AND RELATED SERVICE 7.1 Firm Forward Flow The ICGB shall confirm for the Exempted Network Users and offer to the Network Users, from COD, FFF Capacity at the Exit Point of Stara Zagora (i.e. at B-T) as per Article 5.2.3 above. All Network Users may book, from COD, FFF Capacity at the Entry Point(

1. s)of Komotini (i.e. at D-IP and/or T-IP, as the case may be), to be transported up to the Exit Point of Stara Zagora (i.e. at B-IP) or other Exit Point to the Distribution and/or Other System(s). FFF Capacity, is subject to Entry Point Transmission Tariff and Exit Point Transmission Tariff (ENTFFF and EXTFFF, respectively) as defined in articles 4.1 and 5.1 of 0. Booking procedures for FFF Capacity shall comply with the provisions of Article 10.3 and NC CAM. 7.2 Firm Reverse Flow The ICGB may offer, at any time from COD, Firm Reverse Flow (FRF) capacity (FRF Capacity at the Exit Point(
2. s)of Komotini (i.e. at D-IP and/or T-IP, as the case may be). If offered, FRF Capacity shall be initially treated at COD as “incremental capacity” and shall follow the relevant procedure set out in NC CAM for investing in the necessary Facilities and ensuring the relevant Transmission Service by the ICGB. Following the successful completion of such procedure, the ICGB having made relevant commitments to invest in necessary Facilities and the registration conditions set out in Article 9 having been fulfilled, the execution of a GTA between the ICGB and a Network User for FRF Capacity shall take place. Subject to the preceding sentences, from the commercial operations date of the relevant Facilities, the Network Users may book FRF Capacity at the Entry Point of Stara Zagora (i.e. at B-IP), to be transported up to the Exit Point(
3. s)of Komotini (i.e. at D-IP and/or T-IP, as the case may be). FRF Capacity, is subject to Entry Point Transmission Tariff and Exit Point Transmission Tariff (ENTFRF and EXTFRF, respectively) as defined pursuant to articles 4.4 and 5.4 of 0. The booking procedure for FRF Capacity shall comply with the provisions of Article 10.3 and NC CAM. 26 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 7.3 Interruptible Forward Flow From COD, the Network Users may book Interruptible Forward Flow (IFF) capacity (IFF Capacity at the Entry Point(
4. s)of Komotini (i.e. at D-IP and/or T-IP as the case may be), but only if no FFF Capacity is available. Notwithstanding the interruptible nature of IFF Capacity, the following provisions shall apply to the Network User who has been allocated IFF Capacity. IFF Capacity is subject to Entry Point Transmission Tariff and Exit Point Transmission Tariff (ENTIFF and EXTIFF, respectively) as defined pursuant to article 4.2 and article 5.2 of 0. The booking procedure for IFF Capacity shall comply with the provisions of Article 10.3 and NC CAM. 7.4 Interruptible Reverse Flow From COD, the Network Users may book Interruptible Reverse Flow (IRF) capacity (IRF Capacity at the Exit Points of Komotini (i.e. at D-IP and/or TIP, as the case may be). From COD, the Network Users may book IRF Capacity at the Entry Point of Stara Zagora (i.e. at B-IP). Subject to the preceding sentences of this Article 7.4, all Network User who booked IRF Capacity may deliver Gas at the Entry Point of Stara Zagora and off-take gas at the Exit Point of Komotini. IRF Capacity, is subject to Entry Point Transmission Tariff and Exit Point Transmission Tariff (ENTIRF and EXTIRF, respectively) as defined pursuant to article 4.3 and article 5.3 of 0. The booking procedure for IRF Capacity shall comply with the provisions of Article 10.3 and NC CAM. 7.5 Entry Point Specification The compliance of the delivered gas with the Entry Point Gas Specification shall be continuously monitored by the ICGB at each Interconnection Point. For any deviation from the Entry Point Gas Specification, Network Users shall be notified by the ICGB and shall give to ICGB the right to reduce or to interrupt the Transmission Service in case such deviations may affect, in the reasonable opinion of the ICGB, integrity or safety of operation of the IGB Pipeline. 7.6 Services provided by the ICGB Without prejudice to any other provision of this INC, the relevant GTA (if any) and/or the VTP Agreement, this Article 7.6 summarises the services provided by the ICGB: Uninterruptible service 27 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 The Reserved Capacity or the Booked Capacity, in each case when relating to FFF Capacity or FRF Capacity, shall not be interrupted if the following requirements are satisfied: (
5. a)the Gas at any Entry Point(
6. s)is compliant with the Entry Point Specification

Article 22

.5; (

1. b)the Gas Quantities are confirmed through the relevant confirmation at each Interconnection Point and each Exit Point to the Distribution and/or Other System(s), pursuant to Article 13; (
2. c)the Gas Days are outside the maximum permitted yearly interruption foreseen in the ICGB’s Annual Plan (as such is set and updated

Article 4.1.1); and (d) reduction or interruption is not caused by a Force Majeure Event.

Capacity booking (a) The process of capacity booking shall be implemented through the Platform. The ICGB shall calculate and publish the Available Capacity at the Interconnection Points and Exit Points to the Distribution and/or Other System(s), define and administer the procedure with which the Network User requests capacity, allocate capacity (

the Exemption Decision and/or NC CAM provisions, as the case may

1. be)and execute the relevant GTA(s). (
2. b)The ICGB shall manage the allocation of Gas between the Network Users, where the Network Users share ownership of the Gas flowing through the same Metering Station. VTP access Subject to having entered into the VTP Agreement with the ICGB

Article 9

.3 and provision of the Network User Credit Support

the Article 29, the ICGB shall offer to a Network User access to the VTP (via the IGB Digital Support). For the avoidance of doubt, it is not required for the Network User to enter into a GTA in order to obtain an access to the VTP. Provisional Network User Allocation and Final Allocation The ICGB shall determine and transmit to the Network User the Provisional Network User Allocation and provide the Final Allocation

Article 16. Any Capacity Overruns shall be determined by the Final Allocation.

In case of two or more Non-Exempted Network Users incurring Capacity Overrun in relation to the same Exit Point to the Distribution and/or Other System(s), the total Capacity Overrun of all Non-Exempted Network Users for such Exit Point will be pro-rated between those Non-Exempted Network Users. 28 ΑΔΑ: ΨΔΘΤΙΔΞ-8Γ4 September 2022 Information data The ICGB shall administer the data relating to the transportation activities on the IGB Pipeline, including those related to the Network User’s Nominations, through the IGB Digital Support described in Article 4.

1. Data that are to be exchanged via IGB Digital Support are described in Article
2. Balancing The ICGB shall calculate and apply Daily Imbalance Charges, as described in Articles 16 and 17 and further elaborated in the relevant GTA. Gas metering The ICGB shall be responsible for measurement data acquisition and validation and for forwarding of such data to the Network User

Article 23.3.

Gas quality The ICGB shall measure the Gas Characteristics and verify compliance with the Entry Point Specification and Exit Point Specification (

Article 22

), such as those necessary to calculate energy (Gross Calorific Value GCV) and those related to the control of chemical and physical characteristics of Natural Gas. IGB Pipeline interventions The ICGB shall perform periodic inspections, control and maintenance, which may cause interruption or reduction of the transportation capacity of the IGB Pipeline. These activities can be either planned or may become necessary without planning if anomalous or unforeseen situations or emergencies occur. The planning of interven