Government Procurement Act Article 49
For a procurement of a value not reaching the threshold for publication but is not less than one tenth of the threshold, offers or proposals in writing shall be obtained openly from at least three suppliers, except for the circumstances specified in each subparagraph of paragraph 1 of Article 22.
中文原文 政府採購法第49條
未達公告金額之採購，其金額逾公告金額十分之一者，除第二十二條第一項各款情形外，仍應公開取得三家以上廠商之書面報價或企劃書。