Exhibit 21.01 LIST OF ESS TECHNOLOGY, INC.'S SUBSIDIARIES ESS Canada Holdings, Inc. - California ESS Technology Holdings, Inc. - California Netridium Communications, Inc. - California OSEE Technology, Inc. - California Platform Technologies, Inc. - California Video Core Technology, Inc. - California ESS Technology International, Inc. - Cayman Islands, B.W.I. Vsystems International, Inc. - Cayman Islands, B.W.I. Wei Shi Technology, Inc. - Cayman Islands, B.W.I ESS (Far East) Limited - Hong Kong ESS British Columbia Holdings, Inc. (a.k.a. Silicon Analog Corporation) - British Columbia Beijing ESS Electronics Technology Co., Ltd.