Regulations on Business Entity Accounting Handling Article 34

Operating costs: defined as the costs that are attributable to the transfer of goods or services to customers in the current period.
中文原文 商業會計處理準則第34條
營業成本,指本期內因移轉商品或勞務予客戶所應負擔之成本。

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