This guy will most likely be extremely hostile towards China. I found this article from two years ago :
The ultra-liberal Javier Milei, the first candidate for deputy for the City of Buenos Aires, assured that he "would not do business with China", despite the fact that it fluctuates between the first and second destination for Argentine exports. The argument of the referent of Avanza Libertad was extemporaneous: "I do not do transactions with communists."
The far-right economist considered that breaking relations with China would not be a serious macroeconomic problem because "we could make transactions with the civilized side of life", where he placed the countries of the "West".
Milei's McCarthyist position was exposed during an interview with Canal de la Ciudad, in which a journalist began by asking him about the relationship with Cuba and Venezuela -to which he only replied "condemn"-, and then opened the query by the main trading partner of Argentina after Brazil.
"I would not do business with China," the economist tried to evade the question, but when asked about the impact it would have on the Argentine economy to stop exporting grains and meat to the Asian country, Milei insisted on his cold war position: "It is false that it would be a macroeconomic tragedy. We could deal with the civilized side of life. I don't deal with communists."