For China nationality matters, the key question is rarely translation alone. The real issue is whether your file only needs a Chinese translation, or whether the underlying foreign document also needs notarization, an apostille, or full legalization before a Chinese authority will use it. This guide explains the difference for restoration cases, former Chinese nationality proof, foreign civil-status documents, and related filings, with official China rules, practical workflow guidance, complaint paths, provider boundaries, and the most common mistakes that cause delays.