10 June 2026 – JST Group Corporation Limited (JST Group) disclosed that it repurchased 1.94 million ordinary shares on the Hong Kong Stock Exchange on 10 June 2026.

The shares were bought at prices ranging from HK$15.18 to HK$15.97, with a volume-weighted average cost of HK$15.69 per share. Total consideration reached HK$30.48 million. The transaction represents 0.46 % of the company’s issued share capital (excluding treasury shares) prior to the buyback.

Following the transaction: • Issued shares outstanding (excluding treasury shares) decreased to 423.66 million from 425.60 million. • Treasury shares increased to 12.61 million from 10.67 million. • Total issued shares remained unchanged at 436.26 million.

The buyback forms part of the mandate approved by shareholders on 29 May 2026, which authorises the repurchase of up to 42.66 million shares. To date, JST Group has repurchased 2.99 million shares under this mandate, equivalent to 0.70 % of the issued shares at the mandate date, leaving capacity for a further 39.67 million shares.

Under Hong Kong Main Board Rule 10.06(3), JST Group is subject to a moratorium on issuing new shares or disposing of treasury shares until 10 July 2026.