HONG KONG (S&P Global Ratings) May 8, 2017--S&P Global Ratings today said that it has assigned its 'BB+' long-term issue rating to the proposed U.S. dollar-denominated Basel III Tier-1 subordinated notes to be issued by Woori Bank (A/Stable/A-1). The notes will be drawn down from the bank's junior subordinated tranche under its US$7 billion global medium-term note program. The rating is subject to our review of the final issuance documentation. The subordinated notes are intended as Basel III Tier 1 regulatory capital for Woori, and will be direct, unsecured, and subordinated to senior creditors' claims. We note the inclusion of a writedown clause in the event of nonviability. If the bank is designated an "insolvent financial institution" by Korean regulators,