Regulations Governing Customs Bonded Factories Article 45

While bonded items in warehouses or in process at a Bonded Factory are damaged or destroyed by flood, storm, fire or other acts of God, the Bonded Factory shall, within one week from the date following the discontinuation of the force damage, first report the damages to Customs for verification and subsequently delete such items from the account after verification.In case shortage in bonded articles, either in stock or in process, is found due to theft, supplementary payment of import duties levying on such shortage shall be made and the missing articles may be deleted from the account within three months from the date following the date of occurrence of the theft, if the case of theft has been reported to and certified by the police authority concerned and subsequently verified by the Customs authority. Under special situation and with the approval of the supervising Customs, the Bonded Factory may apply for temporary exemption from making supplementary payment of import duties levying on such missing articles against the monetary security to be provided by it. However, the period of such temporary exemption from import duties shall in no case be longer than six months, and if the missing articles can not be recovered upon expiry of the said grace period, the case shall be closed by offsetting the security against the import duties levying thereon. The Customs authority shall refund the portion of such security in securing the import duties payable on the missing articles which have been recovered.
中文原文 海關管理保稅工廠辦法第45條
保稅工廠存倉或在製之保稅物品,遭受水災、風災、火災或其他天然災害而致損毀,經於災害事實終止之翌日起一週內報請海關查明屬實者,得核實除帳。
保稅工廠存倉或在製之保稅物品,遭受失竊而致短少,經向警察機關報案取得證明報請海關查明屬實者,應自失竊之翌日起三個月內補稅除帳,其有特殊情形,報經監管海關核准者,得申請提供保證金暫免補稅,惟最長不得超過六個月,期滿後如仍未找回,即將保證金抵繳稅款結案,找回部分海關應將保證金退回。

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