Anton Oilfield Services Group disclosed in its Monthly Return for Equity Issuer that it repurchased 78.31 million ordinary shares in September 2026 for subsequent cancellation. As of 30 September 2026, these shares had not yet been cancelled; consequently, the company’s issued share capital remained unchanged at 3.00 billion ordinary shares with no treasury shares on record.

Key figures for the month: • Authorised share capital: 3.50 billion ordinary shares at a par value of HKD 0.10, equivalent to HKD 350.00 million. No changes were recorded during the period. • Issued share capital: 3.00 billion shares at both the beginning and end of September, reflecting that the repurchased shares were still pending cancellation. • Share repurchase: 78.31 million ordinary shares were acquired for cancellation. The company did not disclose the aggregate consideration or average repurchase price in the filing. • Treasury shares: None held as of month-end. • Public float: Management confirmed compliance with the Main Board’s minimum 25% public float requirement.

The filing, dated 7 October 2026, was signed by Executive Director Pi Zhifeng and confirms adherence to all Hong Kong Stock Exchange listing rules and related regulatory requirements.