Anton Oilfield Services Group disclosed a Next Day Disclosure Return dated 1 June 2026, confirming that its issued share capital remains unchanged at 3.00 billion ordinary shares.

The company bought back 5.20 million shares on 1 June 2026 via on-market transactions at prices ranging between HKD 0.92 and HKD 1.00 per share, for a total consideration of HKD 4.98 million. All repurchased shares are earmarked for cancellation.

Including previous buybacks pending cancellation, Anton Oilfield now holds 48.13 million shares (1.63 % of its issued shares) awaiting cancellation. These repurchases were executed between 5 December 2025 and 1 June 2026 at volume-weighted average prices of HKD 0.81 to HKD 1.04 per share.

Under the shareholder mandate approved on 27 May 2026, the company is authorised to repurchase up to 300.17 million shares. To date, 11.50 million shares (0.38 % of the issued capital on the mandate date) have been bought back under this authority.

Pursuant to Hong Kong listing rules, Anton Oilfield is subject to a moratorium on new share issues or treasury-share sales until 1 July 2026. The board confirmed that all repurchase activities complied with relevant regulatory requirements and that no new shares were issued during the reporting period.