The halt will remain in place until the earlier of the start of normal trading on Friday, August 3, or when the announcement is released to the market.
Valor recently revealed high grades of copper, silver and manganese from surface sampling at its Berenguela project in southern Peru.
There were 198 samples taken from outcrops at the newly identified Corona West area, 3.5 kilometres southwest of Berenguela Central and 2 kilometres west of the original Corona discovery.
The samples have verified the presence of high-grade copper, silver and manganese at surface, appearing along a northwest-southeast trend like that of the Berenguela Central deposit.
Valor has also commenced its second stage of metallurgical test work at the Berenguela Project.
The processing flow sheet tested in the first stage recorded strong metallurgical recovery rates for copper 75-80%, silver 80-85% and manganese 85-90% from a 944-kilogram bulk sample.
The second stage of test work is expected to elevate the flow sheet to pre-feasibility study (PFS) level.