Date: October 9, 2015

510 Burrard St, 3rd Floor Vancouver BC, V6C 3B9 www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: BAJA MINING CORP

Dear Sir/Madam:

We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:

Meeting Type : Annual General and Special Meeting Record Date for Notice of Meeting : November 06, 2015 Record Date for Voting (if applicable) : November 06, 2015 Beneficial Ownership Determination Date : November 06, 2015 Meeting Date : December 16, 2015 230 - 830 West Pender Street Meeting Location (if available) : Vancouver, BC Issuer sending proxy related materials directly to NOBO: No Issuer paying for delivery to OBO: No Notice and Access (NAA) Requirements: NAA for Beneficial Holders Yes Beneficial Holders Stratification Criteria: Not Applicable NAA for Registered Holders Yes Registered Holders Stratification Criteria: Not Applicable

Voting Security Details:

Description CUSIP Number ISIN COMMON 05709R103 CA05709R1038

Sincerely,

Computershare

Agent for BAJA MINING CORP