Real Estate Appraiser Act Article 18

A Real Estate Appraiser cannot disclose confidential information obtained through practice except it is disclosed according to Article 21 of this Act or with the prior agreement of his / her clients. However, in order to promote real estate appraisal standards, a Real Estate Appraiser can provide information related to commissioned appraisal cases for the purposes of exchange of appraisal techniques, research and teaching given the personal details of a client are concealed.
中文原文 不動產估價師法第18條
不動產估價師對於因業務知悉之秘密,除依第二十一條之規定或經委託人之同意外,不得洩漏。
但為提昇不動產估價技術,得將受委託之案件,於隱匿委託人之私人身份資料後,提供做為不動產估價技術交流、研究發展及教學之用。

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