Jack Nathan Medical moves to Tier 1 status on TSX Venture Exchange Tier 1 is the premier tier of the exchange and is reserved for the most advanced issuers with the most significant financial resources The move to Tier 1 will be effective at market open on May 19 Jack Nathan Medical Corp (CVE:JNH) (OTCQB:JNHMF) said it has met the requirements and effective at market open on May 19 it will move to Tier 1 status from Tier 2 on the TSX Venture Exchange (TSXV). The TSXV classifies issuers into different tiers based on certain standards including historical financial performance, stage of development and financial resources, with Tier 1 being the premier tier and reserved for the TSXV's most advanced issuers with the most significant financial resources.