Viwit consists of six subsidiaries, including two integrated R&D centers and three cGMP production facilities.

It covers a land area of 199,000 and employs nearly 500 staffs, including more than 150 scientists, many with PhD or master degrees. All three production facilities are managed under cGMP and ICH quality systems, and are certified respectively by cFDA (Chinese GMP 2010), ISO9000:2008, Mexican COFEPRIS, and World Health Organization.