Tranche Update on Shenzhen SDG Information Co., Ltd.'s Equity Buyback Plan announced on May 21, 2022.

Shenzhen SDG Information Co., Ltd. is a China-based company principally engaged in the research, development, manufacture and distribution of optical fibers and cables, wiring network equipment and communication equipment. The Company's main products include optical fibers, optical cables, electronic components, communication equipment, power cables, power and communication cables, fittings and accessories, military aviation communication equipment, data recorders, passive optical network terminals and wireless routers, among others. The Company is also involved in property leasing business. The Company distributes its products in domestic market and to overseas markets.