天孚通信：第三季度公司存在部分物料短缺的情况，目前正在根据客户需求逐步增加产能

Group 1 - The company, Tianfu Communication, positions itself as a provider of overall optical device solutions and advanced packaging manufacturing services for optoelectronics [2] - The company has experienced some material shortages in the third quarter and is gradually increasing production capacity based on customer demand [2] - Major customers of the company include optical module manufacturers, but specific partners are confidential and cannot be disclosed [2]