Gold Bullion Development Corp. (TSXV:GBB) (OTCPINK:GBBFF) (the "Company" or "Gold Bullion") announces that it has completed 6,842 m in 12 holes of diamond drilling in its first drill campaign on the Castle Silver property historic past-producing silver mine property located 85 kilometres northwest of the historic silver camp in Cobalt, Ontario.

Numerous strong calcite veins and vein systems were drilled and many of these were independent of the existing mine workings. The best silver intersection encountered is a 3.09m (10.138 feet) weighted interval of 6,476 g/t Ag (188.80 oz/ton Ag) in hole CA11-08 from 563.54 to 566.63 m including a 0.45m (1.476 feet) interval of 40,944 g/t Ag (1193.70 oz/ton Ag) in a calcite-Co-Ag vein(not true width). Leaf silver was common in the wall rock in the reported interval.