The project has a total collection of 106 accessions some of which came from IDEFOR/DPL, Ivory Coast, West Africa and CIRAD, Montpellier, France. Evaluation conducted on copper content among the ten rubber clones revealed that RRIM 628 exhibited the highest copper content followed by RRIM 605, IAN 873, RRIM 701, IAN 713, PR 107 and RRIM 623. Dry rubber content (DRC) of most clones ranged from 34.34-39.80 percent while total soil content (TSC) was between 40.91-46.43 percent.