Complex sentence: Japanese iced tea products mirror the market for hot tea in the sense that they are mostly green tea and oolong products, usually uflavoured and mostly unsweetened., Kirin, and the Coca-Cola Company are some of the largest producers.
Split into simpler sentences: Japanese iced tea products mirror the market for hot tea in the sense that they are mostly green tea and oolong products, usually unflavoured and mostly unsweetened. Suntory, Kirin, and the Coca-Cola Company are some of the largest producers.