Permit Applications Table

Permit Type Application Date Permit Action

Total Facility Operating Permit January 17, 1995 April 10, 1996 (revision) December 15, 1997 (revision) 001

Administrative Amendment – test deadline extension December 8, 2000 002 Minor Amendment – pellet loadout equipment replacement for fire damage in October 2000 December 15, 2000 002

Major Amendment - replacement pellet reclaim February 25, 2002 March 25, 2002 003

Administrative Amendment – Combustion of Flint Hills’ coker pond fines April 10, 2002 March 28, 2002 (Order of the MPCA Citizens’ Board) 003

Administrative Amendment November 26, 2003 004 Notification of Installation of Ai r Pollution Controls August 27, 2004 005 Minor Amendment – Emission and Energy Reduction Project September 30, 2004 005

Administrative Amendment – reporting deadline extension June 22, 2005 005

Administrative Amendment – 16T Greenball Transfer Project November 7, 2005 005

Administrative Amendment -– test deadline extension December 5, 2005 005 Administrative Amendment -– test deadline extension December 27, 2006 005 Major Amendment – Add solid fuel at Line 1; increase production July 21, 2008 005TABLE OF CONTENTS

Notice to the Permittee

Permit Shield

Facility Description

Table A: Limits and Other Requirements

Table B: Submittals

Table C: Compliance Schedule

Appendices: A. Not used in this permit

B. Visible Emission Checklists

C. Inapplicable Requirements and Insignificant Activities

D. Assumptions Supporting Projected Actual Emissions for the Project to Add Solid Fuel at Line 1 and Increase Production (Permit Action 13700113-005)

E. Determining Sulfur Acid Mist Emissions at EU 040 and EU 042 Using Sulfur Dioxide CEM Data

F. Fugitive Dust Control PlanNOTICE TO THE PERMITTEE:

Your stationary source may be subject to the requi rements of the Minnesota Pollution Control Agency’s (MPCA) solid waste, hazardous waste, and water quality programs. If you wish to obtain information on these programs, including information on obtaining any required permits, please contact the MPCA general information number at:

Metro Area 651-296-6300

Outside Metro Area 1-800-657-3864

TTY 651-282-5332

The rules governing these programs are contained in Minn. R. chs. 7000-7105. Written questions may be sent to: Minnesota Pollution Control Agency, 520 Lafa yette Road North, St. Paul, Minnesota 55155-4194.

Questions about this air emission permit or about ai r quality requirements can also be directed to the telephone numbers and address listed above.

PERMIT SHIELD:

Subject to the limitations in Minn. R. 7007.1800, complia nce with the conditions of this permit shall be deemed compliance with the specific provision of the applicable requirement identified in the permit as the basis of each condition. Subject to the limitations of Minn. R. 7007.1800 and 7017.0100, subp. 2, notwithstanding the conditions of this permit specifyi ng compliance practices for applicable requirements, any person (including the Permittee) may also use ot her credible evidence to establish compliance or noncompliance with applicable requirements.

FACILITY DESCRIPTION:

Crushed ore is unloaded in a covere d building. The ore is then transferred by a covered conveyor to the fines crusher building where it is immediately crushed at the third stage crusher or sent to the coarse ore surge pile. The coarse ore surge pile is used to store ore between train shipments or during times when the crusher is down.

Ore is returned from the coarse ore surge pile and fed in to one of the five third-stage crushers. Particulate emissions from the third-stage crushers are cont rolled by wet scrubbers. The oversize material is conveyed to one of eight fourth-sta ge crushers. Each fourth-stage cr usher has a dedicated wet scrubber to control particulate emissions. Undersize material is transferred to the fine ore surge building. Oversize material is recirculated to the fourth stage crushers.

Five concentrator lines receive ore from the fine ore surge building. Particulate emissions from the transfer of fine ore to the concentrator lines ar e controlled using wet scrubbe rs. Here ore is ground and magnetic separators remove the magnetite ore from the tailings. Low-magnetic coarse tailings are transported by truck for use as construction material for the tailing basin sidewalls. Fine tailings are pumped in slurry form to the tailings basin. Pro cesses performed in the concentrator are wet operations. Concentrate is piped as a slurry to the pelletizing plant. The slurry is dewatered with filters and additives are introduced. Green pellets are produced in balling drums and conveyed to one of two travelling grate kilns. Grate feed, grate discharge, kiln induration, and kiln cooler emissions are controlled with wet scrubbers.Fired pellets are conveyed to pellet storage silos. Pellets are then loaded into rail cars and transported from the facility. Particulate emissions from the pe llets are controlled with wet scrubbers and dust suppressants. Intermediate products and byproducts, including but not limited to rocks, tailings, and concentrate, are also sold by the Permittee.

Supporting activities in the Fairlane Plant include maintenance shops and offices.

PERMIT AND AMENDMENT HISTORY

Permit and Amendment History

Permit Type Application Date Issuance Date Permit Action Number Total Facility Operating Permit 1/17/1995 4/10/1996 12/15/1997 2/23/2000 001

Minor Amendment 12/8/2000 12/15/2000 3/9/2001 002

Major Amendment 2/25/2002; 3/28/2002; 4/10/2002 6/6/2002 003

Administrative Amendment 12/12/2003 11/26/2003 1/7/2004 004

Major Amendment 8/27/2004 9/30/2004; 6/22/2005 11/7/2005 12/5/2005 12/27/2006 7/21/2008 005

Permit Action 005 Permit Action 13700113-005 is a major amendment that incorporates administrative amendments, a notification of installation of control equipment, and a minor amendment.

As shown in the following table, the permit action responds to an application for a minor amendment; a notification of installation of air pollution control equipment; and three applications for administrative amendments from the facility.