Tritunggal Karyindo. PT Tritunggal Karyindo amalgamated in 1992 at the premises in Jakarta (Indonesia). PT. Tritunggal Karyindo have been supplying seafoods, woods, electrical, engineer for over 10 years. We will supply a competitive price and best quality for you. We would like to invite your attention to the fact that the quality of our products are much better than that provided by other suppliers. We would suggest you place a trial order with us, then you will believe what we said and find yourself make a wise decision.