SHANGHAI, Jul. 17 (SMM) – Mainstream traded prices for spot aluminum in Shanghai were RMB 14,340-14,350/mt on Wednesday, RMB 10-20/mt lower than SHFE 1308 aluminum contract prices. Low-iron aluminum was traded around RMB 14,350/mt. Cargo holders held prices firm, while middlemen were hunting for low-priced goods. SHFE 1310 aluminum contract rose towards mid-day, allowing traders to hike offers to RMB 14,350/mt, but downstream producers refrained from buying at highs.