TORONTO, ONTARIO--(Marketwire - May 21, 2008) - Excellon Resources Inc. (TSX:EXN) announces that it has temporarily suspended work at the Platosa Test-mine while it investigates an unexpected underground water inflow. No employees were hurt and all mobile equipment was brought to surface. This inflow occurred when a pilot hole for a new ventilation raise was being enlarged. Although appropriate precautionary steps to prevent this event were taken, the drilling encountered an unexpected fault containing water. The Company is still evaluating the situation, and will provide updates as they become available.

Excellon is preparing to seal off the inflow, and will review its existing program for controlling ground water inflows to minimize any future occurrences. The Company's standard procedure is to drill test holes for all new underground development headings and grout when water is encountered.

"Although this unexpected event is frustrating, we are responding to the situation in a timely and appropriate manner," said Peter A. Crossgrove, Excellon's chairman. "Most importantly, no employees were hurt. We are focused on sealing off the inflow, and resuming normal operations as soon as possible."

About Excellon

Excellon, a mineral resource company operating in Durango State, Mexico, is committed to building value through production, expansion and discovery. The Company is producing silver, lead and zinc from high grade manto deposits on its Platosa Property, strategically located in the middle of the Mexican silver belt. In fiscal 2008, Excellon's focus is on increasing its Mineral Resources through an aggressive $11 million exploration program, and expanding its operating capacity with the building of a mill at site. The Platosa Property, not fully explored, has several geological indicators of a large mineralized system, the tracking of which Excellon believes will lead to the discovery of a world class deposit.

On behalf of

EXCELLON RESOURCES INC.

Peter A. Crossgrove, Chairman