PROEN Corp. Public Company Limited informed that on February 15, 2022, the Company has signed contracts with National Telecom Public Company Limited. for the project of replacing overhead transmission lines system with underground transmission lines system to support the development of Greater Bangkok Asean Metropolis, with the following details: Project Name: Replacing overhead transmission lines system with underground transmission lines system to support the development of Greater Bangkok Asean Metropolis on the Somdet Phra Chao Tak Sin Road (left side of Chom Thong Road - Intharaphithak Road); Replacing overhead transmission lines system with underground transmission lines system to support the development of Greater Bangkok Asean Metropolis on the Ramkhamhaeng Road (Phetchaburi Road - Srinagarindra Road); Replacing overhead transmission lines system with underground transmission lines system to support the development of Greater Bangkok Asean Metropolis on the Charoen Rat Road (Rama 3 Road - Sathorn Road).

Project Owner: National Telecom Public Company Limited; Contractor: PROEN Corp. Public Company Limited; Project Details: PROEN is the contractor of the project of replacing overhead transmission lines system with underground transmission lines system to support the development of Greater Bangkok Asean Metropolis for all 3 contracts. Contract Value (Total 3 Contracts) THB 105,163,599.66 (Thai Baht one hundred five million one hundred sixty-three thousand five hundred ninety-nine and sixty-six Satang) (VAT included); Delivery Period: Within September 24, 2022.

The Company therefore informed and disseminated information to shareholders and investors. The contract is deemed a regular transaction and is comply with the commercial conditions approved by the Company.