The Middle East is Japan’s main source of crude oil, from which naphtha is extracted and used to make items including printing ink and plastics The Middle East is Japan’s main source of crude oil, from which naphtha is extracted and used to make items including printing ink and plastics Takeaways, supermarkets, and bakeries in Japan are running out of plastic bags, trays and food service gloves amid widening shortages of the key plastic ingredient, naphtha, due to the Middle East crisis. The