Telson Mining Corporation Announces Graduation to Tier 1 of the TSX Venture Exchange

Telson Mining Corp. (“Telson” or the “Company”) (TSX Venture – TSN.V, OTCBB – SOHFF, Frankfurt – TSGN (formerly SQ82)) is pleased to announce that it has been approved for graduation from Tier 2 issuer status to Tier 1 issuer status by the TSX Venture Exchange. Telson will commence trading as a Tier 1 issuer on the TSX Venture Exchange on Tuesday May 29, 2018. Tier 1 is the premier tier on the TSX Venture Exchange and is reserved for the most advanced issuers with significant financial resources.

Commenting on this news, Ralph Shearing, President of Telson said “Telson’s graduation to Tier 1 of the TSX Venture Exchange is a further demonstration of the quality of our Campo Morado and Tahuehueto projects and of our management team. Graduating to Tier 1 status will also provide the Company with a more favorable regulatory environment, decreased filing requirements and increased opportunity for participation by institutional investors. We would like to thank the TSX Venture Exchange for recognizing Telson's rapid growth over the past couple of years, which was demonstrated by Telson transitioning from an exploration and development company to a producer with the declaration of commercial production at our Campo Morado Mine effective May 15, 2018.”

About Telson Mining Corporation

Telson Mining Corp. is a Canadian based mining company with two Mexican gold, silver and base metal mining projects.

Telson is currently in production at its 100% owned Campo Morado Mine in Guerrero, Mexico. Telson acquired Campo Morado in June 2017, re-commenced mining and processing operations in October 2017 with pre-production from mine development on a trial basis that commenced at an average 1,400 tonnes per day and has just declared commercial production based on operating for 60 consecutive days at 75% of the Campo Morado mill’s nameplate capacity of 2,500 tonnes per day.

Telson's Tahuehueto Project, located in north-western Durango State, Mexico is currently in pre-production at approximately 100 tonnes per day utilizing a toll mill for processing, and has entered a construction phase with a timeline to be producing on site in its own mineral processing plant capable of milling at least 1,000 tonnes per day in Q1, 2019. Regular metal concentrate delivery and sales are underway from both projects.

Visit: www.telsonmining.com

On behalf of the board of directors

(signed) “Ralph Shearing”

Ralph Shearing, P.Geol, President and Director

Cautionary Note Regarding Production Decisions and Forward-Looking Statements

It should be noted that Telson has declared commercial production at Campo Morado prior to completing a feasibility study of mineral reserves demonstrating economic and technical viability. Accordingly, readers should be cautioned that Telson’s production decision has been made without a comprehensive feasibility study of established reserves such that there is greater risk and uncertainty as to future economic results from the Campo Morado mine and a higher technical risk of failure than would be the case if a feasibility study was completed and relied upon to make a production decision. Telson has completed a preliminary economic assessment (“PEA”) mining study on the Campo Morado mine that provides a conceptual life of mine plan and a preliminary economic analysis based on the previously identified mineral resources (see News Release dated November 8, 2017 and April 4,2018). This will soon be replaced by a pre-feasibility study (“PFS”) that will allow the application of modifying factors to the mineral resources to allow a portion of them to be converted to mineral reserves.

Statements contained in this news release that are not historical facts are “forward-looking information” or “forward-looking statements” (collectively, “Forward-Looking Information”) within the meaning of applicable Canadian securities laws. Forward Looking Information includes, but is not limited to, disclosure regarding possible events, conditions or financial performance that is based on assumptions about future economic conditions and courses of action; the timing and costs of future activities on the Company’s properties, such as production rates and increases; success of exploration, development and bulk sample processing activities and timing for processing at its own mineral processing facility on the Tahuehueto project site. In certain cases, Forward-Looking Information can be identified by the use of words and phrases such as “plans”, “expects”, “scheduled”, “estimates”, “forecasts”, “intends”, “anticipates” or variations of such words and phrases. In preparing the Forward-Looking Information in this news release, the Company has applied several material assumptions, including, but not limited to, that the current exploration, development, environmental and other objectives concerning the Campo Morado Mine and the Tahuehueto Project can be achieved, the continuity of the price of gold, zinc, lead and other metals, economic and political conditions and operations. Forward-Looking Information involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by the Forward-Looking Information. There can be no assurance that Forward-Looking Information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on Forward-Looking Information. Except as required by law, the Company does not assume any obligation to release publicly any revisions to Forward-Looking Information contained in this news release to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

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Telson Mining Corp.:
Glen Sandwell, +1 (604) 684-8071
Corporate Communications Manager
ir@telsonmining.com