SHANGHAI, Jun 2 (SMM) - As of June 2, bonded zone inventory of nickel rose to 4,200 mt, with the inventory of nickel briquettes and nickel plates of 1,670 mt and 2,530 mt respectively. The growing inventory was contributed by the arrival of some spots delivered for long-term orders. Imported pure nickel will arrive at ports intensively from the end of May to early June, which will slightly push up the bonded zone inventory.