BRIEF-Lock-up period for building materials firm BBMG's 1 bln A-shares to end

    March 21 (Reuters) - BBMG Corp

    * Says lock-up period for 1.0 billion A-shares to end,

    trading to start on March 27

    Source text in Chinese: http://bit.ly/2mPKWFn

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    (Reporting by Hong Kong newsroom)