SEOUL, July 27 (Reuters) - Samsung Electronics' (005930.KS) mobile chief said Samsung is "going in the right direction" in China, the world's largest mobile market, as it seeks to raise its lagging market share by boosting premium offerings and ties with local content firms. Third-party data shows the world's largest smartphone maker is making small gains in its single-digit market share in China, said TM Roh, head of mobile experience at Samsung Electronics. "We are making efforts to reach Chinese consumers with products that fit the China market, through software optimisation that fits the China market, and I think the...