As a result, Honda said it has been committed to reducing the amount of precious metals used in catalysts.

FORBES: Honda's Reduced Use Of Rhodium Part Of Effort To Shift Away From More-Expensive Metals

It takes a certain amount of time for companies to make decisions and re-engineer a product, in this case auto catalysts, and put them into production.

FORBES: Honda's Reduced Use Of Rhodium Part Of Effort To Shift Away From More-Expensive Metals