Cahill appeared to deny any notion that he has chosen the Chinese Super League side for financial reasons, citing his desire to raise the profile of Asian football instead.
“I asked for a vision, and vision isn't just about money,” Cahill told Fox Sports.
“I want to be an ambassador for Asia and Australia. I'll make an impact in China on the pitch, I promise you. When I go somewhere, I'll do it properly."
Cahill stopped short of confirming which English sides he had spoken with, but the fresh challenge of moving to China proved too much for him to resist regardless:
I've made the decision purely because I've played in the Premier League and did really well and it was a massive compliment to get the phone calls I did last night and to speak to Moyes about possibly going to La Liga. I've done the Premier League, I've done America. New York was amazing for me (but) China is a growing market in football.
The midfielder scored 16 goals in 72 appearances for New York Red Bulls, per Transfermarkt, winning the MLS Supporters' Shield with the club in 2013, having joined from Everton in 2012.
He lifted the 2015 AFC Asian Cup last month after helping Australia beat South Korea 2-1 in extra-time.
Cahill is also his country’s all-time top scorer with 39 goals in 82 games, according to National Football Teams.
During his club career in England, Cahill picked up a Football League Second Division title and an FA Cup runner-up medal with Millwall before suffering another FA Cup final defeat in an Everton shirt in 2008-09.