Many countries grow tea, mainly for domestic consumption.
Indonesia is a large producer of quality black tea mainly used in tea bags.
Taiwan is famous for its quality semi processed Oolong teas.
Turkey, Russia, Iran, Bangladesh, Papua New Guinea, Nepal, Vietnam, Argentina, Brazil and Malaysia also produce commercial quantities.
Russia was a relatively large producer but its tea crops were destroyed by the Chernobyl nuclear fallout!
Even the USA, New Zealand and Britain have small plantations though these are more of novelty marketing value rather than large commercial export enterprises.
Australia produces a small quantity of tea and contrary to many claims made (Australian Grown), a majority of its tea is blended with imported Ceylon Tea.