KUALA LUMPUR: SBH Marine Holdings Bhd has signed an underwriting agreement with KAF Investment Bank Bhd( KAF IB) for its initial public offering( IPO on the ACE Market of Bursa Malaysia.In a statement, the frozen seafood specialist said the IPO entails an issue of 180 million new shares and an offer for sale of 50 million existing shares. KAF IB will underwrite a total of 81 million public issue shares, comprising 45 million made available to the Malaysian public via ballotting and another 36 mi