Tresta is specialized in specialty chemical, especially surface finishing. We are dealing in a variety of surface finish chemical which has price-competitive and good reputation in a respective specific area through each maker in Korea. Also we are producing some specialty chemical by OEM ranging from PCB upto semiconductor. We are very confident that we provide good and reliable product with best price. Please feel free to contact to us anytime. Product list: 1. Electrolytic cleaner 2. Immersion cleaner 3. Activator / Pd catalyst 4. Etchant 5. Electrolytic nickel 6. Electroless nickel 7. Electroless gold 8. Electrolytic gold 9. Electroless copper 10. PCB DESMEAR PROCESS 11. PCB PTH PROCESS 12. Aluminum PROCESS 13. Nickel Free (Ternary alloy) 14. Copper brightener 15. Silver plating process 16. Neutralized tin plating 17. Tin/Tin-Lead/Tin-Bi 18. Sn-Ag/Sn-In/Sn-Au/Sn-Bi 19. Additives for PCB 20. Electrolytic indium plating, black nickel plating 21. Stripper 22. Anti-tarnish 23. Metal