ÐÇ¿Õ´«Ã½

EXHIBIT 22.1

The following entities are included in the obligated group, as defined in the Quarterly Report on Form 10-Q of ÐÇ¿Õ´«Ã½ Inc. to which this document is being filed as an exhibit, including ÐÇ¿Õ´«Ã½ Inc., as the parent and issuer, and the subsidiary guarantors that have guaranteed the obligations under the 4.875% 2024 Senior Secured Notes, the 5.75% 2025 Senior Notes, the 6.375% 2025 Senior Notes, the 6.75% 2026 Senior Secured Notes, the 5.875% 2027 Senior Notes, the 7.00% 2027 Senior Notes and the 9.875% 2025 Senior Secured Notes issued by ÐÇ¿Õ´«Ã½ Inc.
Exact Name of Issuer or Guarantor Subsidiary (1)
 
Reported as Issuer or Guarantor Subsidiary
  
State of
Incorporation
or Organization
  
Primary 
Standard
Industrial
Classification
Code Number
  
IRS Employer
Identification
Number
ÐÇ¿Õ´«Ã½ Inc.
 
Issuer
 
Ohio
 
1000
 
34-1464672
AH Management, Inc.
 
(3)
 
Delaware
 
3312
 
51-0390893
AKS Investments, Inc.
 
(3)
 
Ohio
 
3312
 
31-1283531
AK Steel Corporation
 
(3)
 
Delaware
 
3312
 
31-1267098
AK Steel Holding Corporation
 
(3)
 
Delaware
 
3312
 
31-1401455
AK Steel Properties, Inc.
 
(3)
 
Delaware
 
3312
 
51-0390894
AK Tube LLC
 
(3)
 
Delaware
 
3312
 
31-1283531
Cliffs Mining Company
 
(2)
 
Delaware
 
1000
 
34-1120353
Cliffs Minnesota Mining Company
 
(2)
 
Delaware
 
1000
 
42-1609117
Cliffs TIOP Holding, LLC
 
(2)
 
Delaware
 
1000
 
47-2182060
Cliffs TIOP, Inc.
 
(2)
 
Michigan
 
1000
 
34-1371049
Cliffs TIOP II, LLC
 
(2)
 
Delaware
 
1000
 
61-1857848
Cliffs UTAC Holding LLC
 
(2)
 
Delaware
 
1000
 
26-2895214
IronUnits LLC
 
(2)
 
Delaware
 
1000
 
34-1920747
Lake Superior & Ishpeming Railroad Company
 
(2)
 
Michigan
 
1000
 
38-6005761
Mountain State Carbon, LLC
 
(3)
 
Delaware
 
3312
 
31-1267098
Northshore Mining Company
 
(2)
 
Delaware
 
1000
 
84-1116857
PPHC Holdings, LLC
 
(3)
 
Delaware
 
3312
 
31-1283531
Silver Bay Power Company
 
(2)
 
Delaware
 
1000
 
84-1126359
SNA Carbon, LLC
 
(3)
 
Delaware
 
3312
 
31-1267098
The ÐÇ¿Õ´«Ã½ Iron Company
 
(2)
 
Ohio
 
1000
 
34-0677332
Tilden Mining Company L.C.
 
(2)
 
Michigan
 
1000
 
34-1804848
United Taconite LLC
 
(2)
 
Delaware
 
1000
 
42-1609118
 
 
 
 
 
 
 
 
 
(1) The address and phone number of each issuer and guarantor subsidiary is c/o ÐÇ¿Õ´«Ã½ Inc., 200 Public Square, Suite 3300, Cleveland, Ohio 44114, (216) 694-5700.
(2) The entity is included as a guarantor subsidiary as of March 31, 2020 and December 31, 2019.
(3) The entity is included as a guarantor subsidiary as of March 31, 2020.