Everton have agreed a new three-year extension to their shirt sponsorship deal with Chang.
The new contract with the Thai beer company is the biggest in the club's history, potentially worth in excess of £12million.
Midfielder Marouane Fellaini flew to Thailand with a senior delegation from the club to meet with supporters and Chang officials, who signed the new contract on Thursday.
"We consider Chang to be very much a part of the extended Everton family," said Everton chief executive Robert Elstone. "We are proud of what we have achieved in our time together and to have contributed to the development of young Thai footballers and the coaching infrastructure.
"Chang have always been very supportive of Everton since we first signed with them in 2004 and have been extremely proactive in driving the partnership forward, helping Everton grow internationally, whilst we have assisted in supporting Chang in key markets around the world.
"We understand that in the modern sports sponsorship market it is vital to generate as much value as possible and together we believe that the Everton/Chang relationship will continue to provide a significant payback on the investment."