SHANGHAI, Apr 21 (SMM) - According to SMM statistics, the social inventory of silicon metal in the three places totaled 119,000 mt as of April 21, an increase of 1,000 mt from the previous week. In Tianjin, the inventory declined slightly amid few arrivals and good shipments. The inventory of Huangpu Port increased amid rising arrivals. In Kunming, the recent transactions were still active but the delivery was limited, hence the inventory remained stable. Therefore, the total social inventory in the three places increased slightly.