Japan's domestic shipments of secondary aluminium alloy in September 2008 were 94,208 mt, down 2.1% year on year due to increased alloy imports from other parts of Asia, the Japan Aluminium Alloy Refiners Association said. Increased ADC12 alloy imports from China, South Korea and Taiwan hit Japanese alloy smelters as some domestic diecasters had switched to importing, Shoji Matsunaga, an association…