Regulations Governing Fees for Commodity Inspection Article 25

The assessment fee for factory inspection under the Registration of Product Certification and the Voluntary Product Certification schemes is NT$8,000 per day for each assessor. NT$4,000 will be charged for an assessment conducted in less than four hours.
中文原文 商品檢驗規費收費辦法第25條
辦理商品驗證登錄及自願性產品驗證符合性評鑑程序之工廠檢查,其評鑑費每人每天新臺幣八千元。
但評鑑時間未達四小時者,減半計收。

English translation for reference only; the Chinese text prevails. Not legal advice.