The companies established Huawei-Symantec Technologies Co. Ltd. in 2008, with Symantec owning 49 percent and Huawei owning 51 percent.
Huawei now maintains sole proprietorship of all the venture’s elements, including more than 900 patents.
The companies originally announced the buyout in November of last year.
Each company initially put up $150 million to start the venture, with Symantec aiming to increase its penetration into the Chinese market and grow its appliance business.
Symantec said in its announcement that its business in China has grown 46 percent over the past three fiscal and that it leaves the venture with a positive return on its original investment.