In nearly all of asia, the number-one agricultural crop is

sweet potatoes
wheat
coffee
rice

Rice is the best and number one crop of asia. it is because in general asia is a very vaste food market. but the one key ingredient in most of the food consumed all over asia is rice. it is consumed in many formes and shapes both as a direct food and also the products that are created by the use of rice.

Exposed great deposits of coal and iron ore

The peak above is part of the  sierra madre occidentals ,  a chain of volcanic mountains that runs through the middle of central america.