Mine Safety Appliances Company (MSA)

VOTING SECURITIES AND RECORD DATE

As of February 13, 2009, the record date for the Annual Meeting, 35,784,480 shares of Common Stock were issued and outstanding, not including 2,378,462 shares held in the Company’s Stock Compensation Trust. The shares held in the Stock Compensation Trust are not considered outstanding for accounting purposes but are treated as outstanding for certain purposes, including voting at the Annual Meeting. See “Stock Ownership—Beneficial Ownership of Management.”

Only holders of Common Stock of the Company of record on the books of the Company at the close of business on February 13, 2009 are entitled to notice of and to vote at the Annual Meeting and at any adjournment thereof. Such holders are entitled to one vote for each share held and do not have cumulative voting rights with respect to the election of directors. Holders of outstanding shares of the Company’s 4 ¹/2% Cumulative Preferred Stock are not entitled to vote at the meeting.

See “Stock Ownership” for information with respect to share ownership by the directors and executive officers of the Company and the beneficial owners of 5% or more of the Company’s Common Stock.

VOTING SECURITIES AND RECORD DATE

As of February 15, 2008, the record date for the Annual Meeting, 35,672,042 shares of Common Stock were issued and outstanding, not including 2,519,940 shares held in the Company’s Stock Compensation Trust. The shares held in the Stock Compensation Trust are not considered outstanding for accounting purposes but are treated as outstanding for certain purposes, including voting at the Annual Meeting. See “Stock Ownership—Beneficial Ownership of Management.”

Only holders of Common Stock of the Company of record on the books of the Company at the close of business on February 15, 2008 are entitled to notice of and to vote at the Annual Meeting and at any adjournment thereof. Such holders are entitled to one vote for each share held and do not have cumulative voting rights with respect to the election of directors. Holders of outstanding shares of the Company’s 4 ¹/2% Cumulative Preferred Stock are not entitled to vote at the meeting.

See “Stock Ownership” for information with respect to share ownership by the directors and executive officers of the Company and the beneficial owners of 5% or more of the Company’s Common Stock.

VOTING SECURITIES AND RECORD DATE

As of February 16, 2007, the record date for the Annual Meeting, 36,015,416 shares of Common Stock were issued and outstanding, not including 2,749,012 shares held in the Company’s Stock Compensation Trust. The shares held in the Stock Compensation Trust are not considered outstanding for accounting purposes but are treated as outstanding for certain purposes, including voting at the Annual Meeting. See “Stock Ownership—Beneficial Ownership of Management.”

Only holders of Common Stock of the Company of record on the books of the Company at the close of business on February 16, 2007 are entitled to notice of and to vote at the Annual Meeting and at any adjournment thereof. Such holders are entitled to one vote for each share held and do not have cumulative voting rights with respect to the election of directors. Holders of outstanding shares of the Company’s 4 ¹/2% Cumulative Preferred Stock are not entitled to vote at the meeting.

See “Stock Ownership” for information with respect to share ownership by the directors and executive officers of the Company and the beneficial owners of 5% or more of the Company’s Common Stock.

VOTING SECURITIES AND RECORD DATE

As of February 17, 2006, the record date for the Annual Meeting, 36,545,045 shares of Common Stock were issued and outstanding, not including 3,000,525 shares held in the Company’s Stock Compensation Trust. The shares held in the Stock Compensation Trust are not considered outstanding for accounting purposes but are treated as outstanding for certain purposes, including voting at the Annual Meeting. See “Stock Ownership—Beneficial Ownership of Management.”

Only holders of Common Stock of the Company of record on the books of the Company at the close of business on February 17, 2006 are entitled to notice of and to vote at the Annual Meeting and at any adjournment thereof. Such holders are entitled to one vote for each share held and do not have cumulative voting rights with respect to the election of directors. Holders of outstanding shares of the Company’s 4 ¹/2% Cumulative Preferred Stock are not entitled to vote at the meeting.

See “Stock Ownership” for information with respect to share ownership by the directors and executive officers of the Company and the beneficial owners of 5% or more of the Company’s Common Stock.

VOTING SECURITIES AND RECORD DATE

As of February 18, 2005, the record date for the Annual Meeting, 36,360,358 shares of Common Stock were issued and outstanding, not including 3,062,767 shares held in the Company’s Stock Compensation Trust. The shares held in the Stock Compensation Trust are not considered outstanding for accounting purposes but are treated as outstanding for certain purposes, including voting at the Annual Meeting. See “Stock Ownership—Beneficial Ownership of Management.”

Only holders of Common Stock of the Company of record on the books of the Company at the close of business on February 18, 2005 are entitled to notice of and to vote at the Annual Meeting and at any adjournment thereof. Such holders are entitled to one vote for each share held and do not have cumulative voting rights with respect to the election of directors. Holders of outstanding shares of the Company’s 4 ¹/2% Cumulative Preferred Stock are not entitled to vote at the meeting.

See “Stock Ownership” for information with respect to share ownership by the directors and executive officers of the Company and the beneficial owners of 5% or more of the Company’s Common Stock.