Is Seta Taweixin Chinese?

Yes. According to a query on the China Celebrity Network, Settha Weixing is of Chinese descent. His ancestors were Hakkas who immigrated to Indonesia from China. He went to Siam to engage in forestry business since the reign of King Rama V. Overseas Chinese refers to the descendants of Chinese with Chinese ancestry who were born in the country of residence and obtained the nationality of the country of residence.