Japan Rubber Weekly has carried out a study into the fiscal 2020 business results of rubber-related companies across Japan. This revealed that the combined sales revenue of the top 50 companies came to just under 3.41 trillion yen ($31.12 billion), down 14.3 percent year-on-year, while the top 10 companies totaled just over 2.6 trillion yen, down 15.2 percent. The spread…