Analyze the relationship between 'HM Treasury' and 'UK Financial Investments' within the context of the input sentence.
Options: currency, owner of, manufacturer, location of formation

Global banks Citigroup (NYSE: C - news ) , Goldman Sachs (NYSE: GS-PB - news ) , Morgan Stanley (Xetra: 885836 - news ) and UBS (NYSEArca: FBGX - news ) orchestrated the share sale but have each been instructed by UK Financial Investments Limited (UKFI) and HM Treasury not to sell further RBS shares for at least 90 days without prior written consent from a majority of the other selling banks.
owner of