Chart of traded commodities?

I own a yellowgrease (feedstock for biodiesel) processing plant in Massachusetts USA and i just began to use ypur app, which has valuable information for investors and decison makers.

If Seeking Alpha were to have a chart with information of the daily or weekly results and analysis of commodities, I'd bet you'll have many new subscribers.

Thanks for your work.

Saludos,

Eduardo Suárez