There are cheap raw materials (ephedrine produced in China's Ningxia Province), shipment to Taiwan (in fishing boats), processing and production in Taiwan with "technical assistance" from Japanese and Korean experts, and exports to Japan, Korea, or Hawaii.
安非他命的產銷過程，也頗有產業分工國際化的架式：廉價原料是產自大陸寧夏省的麻黃素，漁船走私進口後在日籍、韓籍的師傅「技術指導」下開工生產，然後回銷日、韓或是夏威夷。