Regulations Governing Collection of Soil and Groundwater Pollution Remediation Fees Article 9

When imported substances for which remediation fees have already been paid are exported, the fee payer may submit, before the end of January, April, July, or October of each year, export declaration forms and remediation fee payment receipts for the actual amounts of those substances imported/exported during the previous quarter, and apply to the central competent authority for a refund of 70% of the paid remediation fees; the refund may be counted towards a portion of subsequent remediation fee payments. Refund applications shall be submitted before the end of the two quarters following export.
中文原文 土壤及地下水污染整治費收費辦法第9條
已繳納整治費之進口物質於出口時,其繳費人得於每年一月、四月、七月或十月之月底前,依前一季實際出口數量,檢具進、出口報單及該物質已繳納整治費單據,向中央主管機關申請退還其已繳納整治費費額百分之七十,並得充作其後應繳納費額之一部分。
退費之申請應於出口之下兩季結束前提出。

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