Home2011 Treaties and Agreements ...Chile (11-331) – Antitrust Cooperation Agreement hide Chile (11-331) – Antitrust Cooperation Agreement TIAS Office of Treaty Affairs March 31, 2011 Trade and Investment: Antitrust Cooperation Agreement signed at Washington March 31, 2011; entered into force March 31, 2011. Download attachment [386 KB] Tags Chile Trade and Investment Treaties