RCA mission coworkers seek to witness through student work, education, translation, and evangelism. In response to requests from the Presbyterian Church in Taiwan, the RCA provides funds to help in seminary education, evangelism among unreached indigenous peoples, disaster relief, and programs of the Presbyterian Church such as the Fisherman's Service Center and the Rainbow Project (a program that serves young girls who have been trapped in prostitution).

In addition to requesting mission coworkers and resources, the PCT seeks the support of its partners in North America and Europe with other issues that face the church. The PCT has encouraged American churches to support Taiwan's acceptance into the United Nations, and strongly supports the independence of Taiwan. It asks its ecumenical partners to stand in solidarity with the church in the endeavor to obtain Chinese recognition of Taiwan's sovereignty.

Dave & Char Alexander

Charlene Bos and David Alexander met in Taiwan in 1976 while serving as RCA volunteers. They were married four years later, and returned to Taiwan in 1982 as career missionaries. Currently, Char teaches English at Chang Jung Christian University, which is associated with the Presbyterian Church in Taiwan. Dave teaches practical theology and ministry skills to ministerial trainees at Tainan Theological College and Seminary and offers courses in the lay training division there. The Alexanders have two children, Kate and Grant.