Effective Sunday, December 30, 2012, for trade date Monday, December 31, 2012, and pending all relevant CFTC regulatory review periods, please be advised that the New York Mercantile Exchange, Inc. (NYMEX or Exchange) will amend the business day calendar used to establish the Iron Ore (TSI) contracts last trading day and expiry day. The amended contracts are listed below. This amendment reflects the change to the publication calendar for the underlying index that the data provider, TSI, advised to its customers in November 2012.