Argo Group International Holdings, Ltd. (NasdaqGS: AGII) announced today it will release the Company’s 2011 third quarter financial results after the close of U.S. financial markets on Thursday, November 3, 2011. Company management will conduct an investor conference call starting at 11 a.m. EDT (12 p.m. (noon) ADT) on Friday, November 4, 2011. CONNECTING TO THE CONFERENCE CALL A live webcast of the conference call can be accessed by visiting Argo Group’s Investor Relations Website at http://www.argolimited.com/pages/investors/events-and-webcasts. Participants inside the U.S. and Canada can also access the call by phone by dialing (888) 679-8018 (pass code 23606441). Callers dialing from outside the U.S. and Canada can access the call by dialing (617) 213-4845 (pass code: 23606441). Call participants can also pre-register to expedite access and minimize hold times by visiting ( www.theconferencingservice.com/prereg/key.process?key=PQDJ3CKWQ) A webcast replay will be available shortly after the conference call and can be viewed at http://www.argolimited.com/pages/investors/events-and-webcasts through December 31, 2011. In addition, a telephone replay of the call will be available through November 11, 2011, to callers dialing from inside the U.S. and Canada by dialing (888) 286-8010 (pass code 79819401). Callers dialing from outside the U.S. and Canada can access the call replay by dialing (617) 801-6888 (pass code: 79819401). ABOUT ARGO GROUP INTERNATIONAL HOLDINGS, LTD. Argo Group International Holdings, Ltd. (NasdaqGS: AGII) is an international underwriter of specialty insurance and reinsurance products in the property and casualty market. Argo Group offers a full line of products and services designed to meet the unique coverage and claims handling needs of businesses in four primary segments: Excess & Surplus Lines, Commercial Specialty, International Specialty and Syndicate 1200. Argo Group's insurance subsidiaries are A. M. Best-rated 'A' (Excellent) (third highest rating out of 16 rating classifications) with a stable outlook, and Argo's U.S. insurance subsidiaries are Standard and Poor's-rated 'A-' (Strong) with a stable outlook. More information on Argo Group and its subsidiaries is available at www.argolimited.com.