Take context from the input text and decide on the accurate relationship between 'Interbank' and 'financial services' from the options provided.
Options: creator, owner of, chairperson, product/material produced

Mr. Stewart was once a trader at Rabobank, having since been obstructed from participating in the UK’s financial services industry on the heels of a criminal conviction for London Interbank Offered Rate (LIBOR) fraud.
product/material produced