The most important determinant for the location of a brick industry is the availability of

Explanation

The most important determinant of the location of an industry that is into bricks production is the market. This has to do with people who are willing and able to patronize the product of the company. The market to buy produced goods/materials is very important. If the industry is located in a rural area, the patronage would be low because urban areas are the highest consumers of building materials.