Act for the Establishment and Management of Free trade zones Article 35

Any foreign business personnel who has been permitted after the application by a free-trade-zone enterprise on his behalf filed to and forwarded by the management authority of the free trade zone may apply for the entry visa upon his arrival in the ROC.Business personnel from the Mainland Area, Hong Kong or Macao may apply for entry into the free trade zone to conduct business activities in accordance with relevant acts and regulations concerning the cross-strait relationship. Regulations thereof shall be prescribed otherwise.
中文原文 自由貿易港區設置管理條例第35條
外籍商務人士得經自由港區事業代向自由港區管理機關申請核轉許可,於抵達中華民國時申請簽證。
大陸地區或香港、澳門商務人士得依兩岸關係相關法規辦理申請進入自由港區從事商務活動,其辦法另定之。

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