(Updates with official prices, updates spreads) LONDON, March 1 (Reuters) - Tin prices plunged more than 10% on Monday as last week’s nine-year highs triggered some technical selling and prompted investors to book profits, though shortages capped losses. Benchmark three-month tin on the London Metal Exchange (LME) was on track for its biggest daily fall since 2008. In official trading, tin was down 10.6% at $23,031 a tonne. The price of tin, much of which is used in solder to connect components in electronics, jumped to its highest since August 2011 last Thursday at $27,500 a tonne. Supply tightness and a boom in demand for electronic products, which has driven growth in Asia’s factories, has boosted prices and caused a massive premium for immediate delivery. “Prices have gone up exponentially in not just tin but all the metals over the last month and investors are taking the opportunity to square their books,” said independent analyst Robin Bhar. “Technical issues accounted for the plunge in tin prices, but fundamentals are still solid. The green revolution would suggest that demand will remain solid going forward.” INVENTORIES: On-warrant LME tin inventories MSNSTX-TOTAL - those not earmarked for delivery - are at 1,290 tonnes, having climbed from a record low of about 800 tonnes three weeks ago. SPREADS: The premium for cash tin over three-month tin CMSN0-3 stands at about $1,195 a tonne after surging to as much as $6,500 in February. PREMIUM: Supply shortages and shipping delays in U.S. ports have pushed the physical premium for tin in warehouses there to almost double last year’s level at more than $1,000 a tonne. CHINESE MANUFACTURING: China’s February official manufacturing Purchasing Managers Index (PMI) fell to 50.6 from 51.3 in January, official data showed, hitting its lowest level since last May and missing market expectations of 51.1. OTHER PRICES: LME copper rose 0.8% to $9,148 a tonne after logging its biggest monthly gain since 2016 last month. Aluminium gained 0.5% to $2,165.50, zinc was up 0.4% at $2,804, lead climbed 1.7% to $2,086.50 and nickel edged up 0.5% to $18,675.