Bank Asya said on Wednesday it has mandated Goldman Sachs as its financial advisor for a strategic partnership, without providing further details. Bank Asya shares traded on the Borsa ?stanbul (BIST) were down 3.5 percent on Wednesday. In March, the Qatar Islamic Bank (QIB) said it had entered into exclusive talks to buy a stake in Bank Asya without giving further details. Bank Asya also said last week it mandated its management to possibly sell its subsidiaries. The bank was earlier targeted by government officials who claim alleged irregularities in the bank. The government has however failed to prove these allegations.