Harmony Gold Mining Co. Ltd. and DRDGold Ltd. declined in Johannesburg trading after UBS AG cut its recommendation on the stocks, according to a newswire service.Harmony slid 2.74 rand, or 2.8%, to 95.50 rand as of 9:11 a.m. CAT. UBS cut its recommendation on Africa's third-largest gold producer to neutral from buy.On the same wave length, DRDGold decreased 12 cents, or 1.5%, to 8.10 rand. The stock was cut to sell from neutral, the newswire service reported.