Enforcement Rules of the Government Procurement Act Article 23
For a procurement where part of it involves an exclusive right or a sole source product or supply which no reasonable alternative or substitute exists, and the estimated value of that part is not less than 50 per cent of the value of the procurement, it may be conducted by limited tendering procedures pursuant to subparagraph 2 of paragraph 1 of Article 22 of the Act, provided that separating the procurement into several parts would cause significant inconvenience to the entity and it is necessary to procure all parts as a whole.
中文原文 政府採購法施行細則第23條
機關辦理採購，屬專屬權利或獨家製造或供應，無其他合適之替代標的之部分，其預估金額達採購金額之百分之五十以上，分別辦理採購確有重大困難之虞，必須與其他部分合併採購者，得依本法第二十二條第一項第二款規定採限制性招標。