TONG YANG INDUSTRY revenue for the last year amounted to 23.86 B TWD, the most of which — 17.22 B TWD — came from its highest performing source at the moment, Maintenance Market, the year earlier bringing 14.89 B TWD. The greatest contribution to the revenue figure was made by United States — last year it brought TONG YANG INDUSTRY 9.93 B TWD, and the year before that — 8.60 B TWD.