[2] He would use Philippine identity documents including a birth certificate which he was able to obtain in 2004 which Yang said was fraudulently procured by his grandfather.

[4] Yang would establish prominent business ties in the city of Cagayan de Oro in Mindanao where he often referred to by the Antonio Lim name in the local industry.

His company operates Philippine Veterans Investment Development Corporation's (Phividec) steel mill in Tagoloan, Misamis Oriental.

[12][5] However the elder Yang says he has strained relationship with his brother even back to when he moved to the Philippines and has no joint ventures with him.

[13] He claims not to be fluent in English or any Philippine languages, a claim disputed by lawmakers who grilled him in the 2024 inquiries[2] Presidential Anti-Organized Crime Commission spokesperson Winston Casio further disputes this stating Yang can speak "good Tagalog and a little bit of Visaya"[14] He is unrelated to the Lims of Cagayan de Oro, a prominent Chinese Filipino business family.