Investor FAQ

1.What is Arch Coal’s ticker symbol and what stock exchange does Arch Coal trade on?
2.What is the CUSIP Number for Arch Coal, Inc. common stock?
3.How can I purchase Arch Coal common stock?
4.What is the difference between Class A and Class B stock?
5.Who do I call for information about my Arch Coal shares?
6.How do I change my mailing address?
7.What should I do if I lose my stock certificates?
8.I have never purchased shares of Arch Coal stock. Why am I receiving dividends?
9.Where can a potential investor get information about Arch Coal?
10.When you will announce your next financial results?
1.What is Arch Coal’s ticker symbol and what stock exchange does Arch Coal trade on?
 Arch Coal is traded on the New York Stock Exchange (NYSE) under the ticker symbol ARCH.

2.What is the CUSIP Number for Arch Coal, Inc. common stock?
 Our CUSIP Number is #1037676.

3.How can I purchase Arch Coal common stock?
 Arch Coal does not have a direct share purchase plan at this time. To buy shares of ARCH, please contact any brokerage firm.

4.What is the difference between Class A and Class B stock?
 Arch Coal has two classes of stock, Class A Common Stock and Class B Common Stock. The two classes of common stock have identical terms, except that Class B Stock will not be listed on any national securities exchange.

5.Who do I call for information about my Arch Coal shares?
 Arch Coal's stock transfer agent is American Stock Transfer. They can answer your inquiries about stockholder records, stock certificates, or other stock-related matters. You can contact an American Stock Transfer representative at:

American Stock Transfer Operations Center 6201 15th Avenue Brooklyn, NY 12219 1-800-937-5449 www.amstock.com American Stock Transfer
Operations Center 6201
15th Avenue
Brooklyn, NY 12219
1-800-937-5449
www.amstock.com

6.How do I change my mailing address?
 Please contact American Stock Transfer at 1-800-937-5449.

7.What should I do if I lose my stock certificates?
 Please contact American Stock Transfer at 1-800-937-5449.

8.Where can a potential investor get information about Arch Coal?
 The Investor Relations section of archcoal.com provides a wide range of information, including stock quote, press releases, upcoming events and presentations, SEC filings, and other financial and operational data.

9.I found an old Arch Coal (ACI) stock certificate. How can I tell if is worth anything?
 All ACI stock certificates were issued through an old CUISP, which has been cancelled, and, therefore, the certificates have no value.

10.When you will announce your next financial results?
 When available, the date will be announced in a press release and published on the events page in the investor section of archcoal.com.


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