What is the relationship between Worldpay and London in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

RSA Insurance Group plc (“the Company”) announces that Martin Scicluna, Chairman of the Company, is a Non-Executive Director and Chairman of the Audit Committee of Worldpay Group plc, which with effect from 16 October 2015 has been admitted to the Official List and to trading on the London Stock Exchange.

Answer: headquarters_location