DOOSAN TESNA revenue for the last year amounted to 364.00 B KRW, the most of which — 373.12 B KRW — came from its highest performing source at the moment, Semiconductor Testing Technology and Program Development Service, Electronic Component Development and Sales, and Semiconductor Chip Performance Evaluation, the year earlier bringing 338.65 B KRW. The greatest contribution to the revenue figure was made by South Korea — last year it brought DOOSAN TESNA 373.12 B KRW, and the year before that — 338.65 B KRW.