元道通信(301139.SZ)：目前未涉及光模块领域的产品或订单

Group 1 - The company, Yuandao Communication (301139.SZ), provides communication technology services such as network construction, maintenance, and optimization [1] - The services ensure the effective operation of information communication networks for clients, including communication operators, and provide a stable and high-quality network environment for end users [1] - The company currently does not engage in the optical module product field or have any related orders [1]