January 1, 2017

To Our Customers:

With the enactment of the Dodd Frank Wall Street Reform and Consumer Protection Act,
specifically the Conflict Material Rules, many of our customers (for example publicly traded
companies, and other companies) are required to now required to perform due diligence on their
supply chain custody and disclosure on whether any “Conflict Materials” are used to manufacture
their products that have originated in the Democratic of Congo (“DRC”) or it adjoining countries
(together with the DRC, the “Covered Countries”).

Presently the adjoining countries include Angola, Burundi, Central African Republic, the
Republic of Congo, Rwanda, South Sudan, Tanzania, Uganda and Zambia. “Conflict Materials”
means columbite-tatalite, cassiterite, gold, wolfamite, or other derivatives, which are initially limited
to tantalum, tin and tungsten.

Rode Welding Service LLC is committed to only supply materials which is deemed to be
“DRC Conflict Free”. To that end we have been conducting our due diligence dating back to January
31, 2013. We confirm that all material we supply to you from and after January 31, 2013, is and shall
remain “DRC Conflict Free”.

If you have any questions, please do not hesitate to contact us.

Sincerely,

Thomas J. Feichter
President