"The joint Chambers of Commerce of Sri Lanka express concern over the resolution to be tabled at the UNHRC against Sri Lanka," they said in a statement signed by eight chambers.
It noted that the government of Sri Lanka has promised to fully implement the proposals of a government committee that examined the campaign and suggested reconciliation measures.
"The business community will fully support the development and reconciliation activities that will be undertaken by the government," the statement said.
"The business community would also like to remind the international community that this is an internal matter and that the proposed resolution at this juncture would not be in the interest of the reconciliation process."
The United Nations Human Rights Council is debating alleged war crimes in the island with the resolution against the Sri Lankan government being moved by the US, Norway and France.
The United Nations Human Rights Council will vote Friday on the resolution, aimed