Tucows elects Gigi Sohn, executive director, American Association for Public Broadband, to its board ... Semtech, cloud connectivity services provider, hires MKS Instruments' Mark Lin as executive vice president-chief financial officer, succeeding Emeka Chukwu, effective no later than Oct. 4 ... TechBridge, nonprofit specializing in tech training, adds Tonya Bryant, Southern Co. vice president-technology, to its board ... Antelope Enterprise, operator of KylinCloud, livestreaming e-commerce platform in China, adds Boyu Zhang, vice president-strategic development and investor relations, to its board as an executive director.