Government Procurement Act Article 59

A supplier shall not facilitate the agreement of a contract by giving others commission, percentage, brokerage, kickback, or any other improper benefits.Where a supplier is in breach of the requirements of the preceding paragraph, the entity may terminate or rescind the contract, and deduct two times improper benefits from the contract amount. In the event of failure to deduct from the contract amount, the entity shall notify the supplier to pay it within a time-limit.
中文原文 政府採購法第59條
廠商不得以支付他人佣金、比例金、仲介費、後謝金或其他不正利益為條件,促成採購契約之成立。
違反前項規定者,機關得終止或解除契約,並將二倍之不正利益自契約價款中扣除。
未能扣除者,通知廠商限期給付之。

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