Barrick Mining reaches deal with unions at Mali gold mine, easing strike threat ↧ ↧ Barrick Mining reaches deal with unions at Mali gold mine, easing s... Canada's Barrick Mining has ​signed a new collective bargaining agreement with unions representing workers at its ‌Loulo-Gounkoto gold mine in western Mali, a company spokesperson and a union official said on Sunday, easing the threat of a strike.