11:40 AM EST, 03/06/2020 (MT Newswires) -- Star Diamond (DIAM.TO) fell 9.3% Friday to $0.39 apiece after it has started legal proceedings against Rio Tinto Exploration Canada (RTEC).

This was in relation to RTEC's exercise in November 2019 of its four options under the Option to Joint Venture Agreement dated June 22, 2017.

The company said in a statement that the proceedings commenced in the Court of Queen's Bench for Saskatchewan.

Star Diamond does not intend to comment further on the legal proceedings, except as required by law, it said in a statement.

Price: 0.39, Change: -0.04, Percent Change: -9.30