The New York State Department of Financial Services found that Promontory was not sufficiently independent in its work for Standard Chartered (HKSE: 2888.HK - news ) , a London-based bank that helped clients evade U.S. sanctions against Iran and other countries.
Refer to the input text as context and select the correct relationship between 'Standard Chartered' and 'Financial Services' from the available options.
Options: original broadcaster, owner of, product/material produced, platform