Continental Disc Corporation

Continental Disc Corporation and Groth Corporation announces the appointment of Mr. Marty Koval to the position of Director of Sales, Americas.

Continental Disc Corporation and Groth Corporation websites have been re-launched with five additional language translation options.

Liberty, Missouri – July 27, 2010 – Continental Disc Corporation announces the release of its newest sanitary disc, the SANITRX HPX™ rupture disc.

Groth Corporation unveils the new website redesign of www.grothcorp.com.

Groth Corporation announces the appointment of Mitchell Anderson to the position of Director of Operations.

Continental Disc Corporation and Groth Corporation appoint Steven L. Breid to the position of Vice President, Sales and Marketing.

Continental Disc Corporation has instituted a plan to maximize the amount of recycled material used in their product packaging and shipping containers.

The Well Activation and Safety Protection Valve from Continental Disc Corporation uses rupture disc technology to release pressure to activate tools already in the hole or to protect downhole drill components from overpressure failure.

Liberty, Missouri – December 1, 2009 - Groth Corporation announces that the 1700A Series Pressure / Vacuum Relief Valves and the new 1800A Series Full Lift Type Valves are fully compliant with the requirements of the ATEX Directive.

Continental Disc and Groth Corporations announced today that they will begin to support all Sales, Customer Service and Logistics for the United Kingdom and other European countries from their facilities in Leiden, The Netherlands.