The PE firm is said to be considering strategic options for Oona, just over three years after the firm was established through a US$350m equity commitment.
Philippi maintains his MSIG Asia CEO role and has been named chief strategy officer alongside Keisuke Ema, with Norihiro Tanaka succeeding Tetsuya Adachi as chairman of MSIG Asia.
Chubb's selection marks a key operational step, but fresh attacks on vessels leave lingering questions over the facility's ability to restore near-normal shipping flows.