On April 23, the LME cash-3M copper contango was $19.12/mt, with open interest decreasing by 363 lots to 280,991 lots. On April 23, the LME cash-3M aluminum contango was $32.81/mt, with open interest decreasing by 1,470 lots to 692,531 lots. On April 23, the LME cash-3M lead contango was $20/mt, with open interest decreasing by 1,512 lots to 149,856 lots. On April 23, the LME cash-3M zinc contango was $40.86/mt, with open interest increasing by 627 lots to 201,729 lots. On April 23, the LME cash-3M tin contango was $217.01/mt, with open interest decreasing by 161 lots to 23,318 lots. On April 23, the LME cash-3M nickel contango was $207.32/mt, with open interest decreasing by 3,851 lots to 235,924 lots.