Proxy form for the Extraordinary General Meeting to be held on 8 April 2026

DATE OF BOARD MEETING

UNUSUAL MOVEMENT IN A SHARES TRADING OF THE COMPANY

UNUSUAL MOVEMENT IN A SHARES TRADING OF THE COMPANY

Monthly Return of Equity Issuer on Movements in Securities

Monthly Return of Equity Issuer on Movements in Securities

INSIDE INFORMATION RESULTS ESTIMATION FOR THE YEAR 2025

POLL RESULTS OF EXTRAORDINARY GENERAL MEETING HELD ON 23 JANUARY 2026

SUPPLEMENTAL ANNOUNCEMENT DISCLOSEABLE TRANSACTION DEBT SETTLEMENT AGREEMENT

Monthly Return of Equity Issuer on Movements in Securities

DISCLOSEABLE TRANSACTION DEBT SETTLEMENT AGREEMENT

NOTICE OF THE SECOND EXTRAORDINARY GENERAL MEETING IN 2025

NOTICE OF THE FIRST H SHARES CLASS MEETING IN 2025

Proxy form for the Second Extraordinary General Meeting in 2025 to be held on 31 December 2025

The proxy for the first H Share Class Meeting in 2025 to be held on 31 December 2025

INVESTMENT IN AND DEVELOPMENT OF "HIGH-END PETROLEUM PIPES INTELLIGENT PROCESSING LINE PROJECT"

PROPOSED AMENDMENTS TO ARTICLES OF ASSOCIATION

(1) PROPOSED AMENDMENTS TO ARTICLES OF ASSOCIATION(2) PROPOSED AMENDMENTS TO THE RULES OF PROCEDURE FOR SHAREHOLDERS MEETINGS(3) PROPOSED AMENDMENTS TO THE RULES OF PROCEDURE FOR MEETINGS OF BOARD OF DIRECTORS

Monthly Return of Equity Issuer on Movements in Securities

Monthly Return of Equity Issuer on Movements in Securities