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Mining Cost Service Indexes: Surface & Underground Mining & Milling Operations

The Cost Data and Advice You Need to Make Informed Mining Decisions

Mining Cost Service Indexes: Surface & Underground Mining & Milling Operations

The U.S. MCS indexes are composite indexes representing the cost of developing and operating a typical mining and milling operation in the United States. Separate indexes are listed for surface mine capital costs, surface mine operating costs, underground mine capital costs, underground mine operating costs, mill capital costs, and mill operating costs. Composite proportions are determined from base model estimates with cost distributions published in Mining Cost Service. The surface mine base model is a typical truck/hydraulic excavator operation mining 10,000 short tons ore and 20,000 short tons waste per day. The underground mine base model is a 10,000 short tons per day room and pillar operation using conventional drilling and blasting, with shaft access and LHD and truck haulage. The mill base model is a 10,000 short ton per day single product flotation mill.

Cost indexes provide a means of adjusting outdated cost information for the effects of inflation. They are based on statistical averages of costs for specific items and time periods. Following are the Mining Cost Service composite indexes for surface and underground mining and milling operations. Indexes for specific cost centers, e.g. labor, equipment, transportation, are available by subscription to Mining Cost Service.

NOTE: Beginning with our August 2005 update, the basis for the U.S. MCS Indexes was changed from 1994 = 100 to 2004 = 100. Hence, none of the U.S index values listed in the tables below are compatible with the tables published previously on this site.

Mining Cost Service (MCS) Indexes for USA
Surface MineUnderground MineProcessing/Preparation
YearMonthCapital Cost IndexOperating Cost IndexCapital Cost IndexOperating Cost IndexCapital Cost IndexOperating Cost Index
2010 Jan 123.6 127.6 125.5 125.8 127 134.6
2010 Feb 123.2 126.6 125.6 126 127.9 135.3
2010 Mar 123.6 127.4 125.7 126.2 128.7 137.3
2010 Apr 124 128.5 125.9 126.8 129.7 138.8
2010 May 123.7 127.4 125.8 126.2 130.2 139.4
2010 June 123.5 127 126 126.8 130.2 139.9
2010 Jul 124.4 128.2 126.8 128.4 130.2 139.6
2010 Aug 124.5 127.7 127.1 127.4 130.3 139.6
2010 Sep 125 129.3 127.6 129.4 130.7 140.7
2010 Oct 125.2 129.7 127.4 128.2 130.9 140
2010 Nov 125.8 131.9 127.6 129.2 131.2 140.6
2010 Dec 126.7 133.8 128.5 131.1 132 142.3

Data revised on June 22, 2011.

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