SG Micro Corp (SG Micro) filed its first monthly return to Hong Kong Exchanges and Clearing after its Main Board debut on 26 June 2026, detailing share capital movements for June.

Registered and issued capital • Total registered share capital reached RMB 676.91 million at 30 June 2026. • The H-share tranche—54.00 million shares of RMB 1 par value—recorded no change during the period. • The A-share tranche, listed on ChiNext (code 300661), increased by 271,029 shares following employee incentive plan exercises, pushing outstanding A shares to 622.91 million.

Public-float compliance SG Micro confirmed compliance with Hong Kong’s 5 % minimum public-float requirement for its H shares (stock code 03661) as at end-June.

Equity incentive exercises and cash inflow During the month, 271,029 A-shares were issued through the exercise of stock options under three incentive plans (2023 Stock Option, 2025 Stock Option, and 2025 Second-Tranche Stock Option). These exercises generated RMB 15.04 million in proceeds. No treasury shares were transferred or cancelled.

Capital structure snapshot (30 June 2026) • H shares: 54.00 million issued, representing 7.98 % of total share capital. • A shares: 622.91 million issued, representing 92.02 %. • No treasury shares outstanding across either class.

Other instruments The company reported no outstanding warrants, convertibles, or other share-issuance arrangements beyond the disclosed option schemes.

Governance note Joint Company Secretary Zhang Qin submitted the return on 7 July 2026.