Denox Environmental & Technology Holdings Limited has issued a circular convening its annual general meeting (AGM) for 10:00 a.m. on 18 June 2026 at the company’s Beijing headquarters.

Key dates • Record date for voting rights: 18 June 2026. • Share transfer registration closes: 15–18 June 2026; documents must reach Tricor Investor Services by 4:30 p.m. on 12 June 2026.

Board proposals • Re-election of Non-executive Director Li Xingwu and Independent Non-executive Director Ong Chor Wei. • Both directors are standing for individual votes in accordance with the Articles.

Capital authorities • Issue mandate: Board may allot, issue or transfer up to 118.57 million new shares—20% of the 592.84 million shares in issue as at the latest practicable date. • Buy-back mandate: Board may repurchase up to 59.28 million shares—10% of issued capital—with discretion to cancel the shares or hold them in treasury. • Extension provision: The issue mandate can be enlarged by the number of shares actually repurchased.

Shareholder protection note • Full use of the buy-back mandate would lift Chairlady Zhao Shu and her wholly-owned vehicle’s aggregate holding from 46.63% to 51.81%, potentially triggering a mandatory offer under the Hong Kong Takeovers Code. The board states it has no present intention to repurchase shares to that level.

Auditor re-appointment • Rongcheng (Hong Kong) CPA Limited is nominated for another term, with total audit fees capped at HKD 0.80 million (USD 0.10 million).

Additional information • No treasury shares are currently held. • Voting at the AGM will be conducted by poll; holders of any future treasury shares must abstain.

Shareholders are encouraged to submit proxy forms to Tricor at least 48 hours before the meeting if they cannot attend in person.