Green chemistry to improve performance without capital investment for steam boiler, cooling tower and closed loop water treatment History: Growing fast since 2005, The Tannin Guys® are changing the approach to boiler water treatment from small buildings to large industrial corporations. History People: Multi-disciplinary and innovative team addressing immediate customer needs and giving dynamic support in the field. R&D and Innovation Driven: Each year, TGWT invests 5% to 10% of its revenues in R&D and Innovation using leading edge technologies to bring forward our tannin expertise. Added Value: The Tannin Guys® are all about green chemistry that results in energy savings by reducing water usage, greenhouse gas emissions and maintenance fees. It’s easy, and it requires no capital investment.