[SMM Analysis: Arbitrage Window Opens Drives Market Transactions, High-Grade NPI Prices Still Have Upside Room] The average price of SMM 10-12% high-grade NPI rose 31.23 yuan/mtu WoW to 946.4 yuan/mtu (ex-factory, tax included), while the average Indonesia NPI FOB index price increased 4.26 $/mtu WoW to 118.92 $/mtu. This week, futures retreated after a rapid rise, and the price spread between futures and spot high-grade NPI widened significantly during the week, reaching a relatively high level, triggering market arbitrage positioning.