What was the main reason that Carnegie invested in the Frick Coke Company

The main reason that Carnegie invested in the Frick Coke Company, was because he wanted to invest in new technology.

Andrew Carnegie invested in Frick Coke Company because he wanted to invest in a company that could supply coke to his steel companies.

Overall Andrew Carnegie saw the immense potential in the expanding railroads and he wanted to invest in a wide variety of companies that were connected with supplying the growth of the American railway system.

Intially he only bought 11% of the ocmpany in 1880. Within the next 7 years he had bought over 74% of the company.