" a massive Chinese insurer with a murky ownership structure"    
"Anbang has close ties to the Chinese government "

That is the problem, this company appears to be an extension of the brutal Chinese Communist Party, a regime that denies basic human rights and engages in torture. 

Be wary - this company attempted to buy Starwood hotels but they were rejected and Starwood went with Marriott instead. Many Anbang shareholders own their stakes through little known or recently created firms, including one that was traced to an empty floor in a Beijing office building and two more whose address consisted of a mail drop above a Beijing post office. 

Standard & Poor’s has also raised questions about Anbang’s structure, with the ratings agency saying that it was still unable to fully analyse the company’s financials.