Which countries have areas with subtropical, equatorial, and temperate climates?

There are few countries that met the stated criteria, since the subequatorial climate already suggests that the northern countries disappear, and the temperate one allows you to remove small states in the tropics.

Thus, the People’s Republic of China is the best example. In its northern part there is a temperate climate, subtropics in the center and subequatorial climate in the southern provinces and on the island of Hainan.

Australia is another good example. They have a subequatorial climate in the north, subtropics in the center, and temperate on the island of Tasmania.

Perhaps Brazil is suitable, its southern border with Uruguay runs just near the border of the subtropics and the temperate zone.