SHANGHAI, Mar 16 (SMM) - In early February, the costs rose slightly when the increase in nickel salt prices outweighed the decline of cobalt salt prices. However, the previous cost decline had not yet been fully transmitted to PCAM companies, thus PCAM prices dropped only slightly. In mid-February, cobalt salt prices bounced back, nickel salt prices increased slightly, and the demand picked up, further pushing up the PCAM prices. In late February, PCAM prices climbed slightly since nickel salt and cobalt salt prices both rose further.