Covista Inc.

Officers and other employees or agents of Covista may solicit proxies by mail, personal interview, telephone, facsimile, electronic means, or via the internet without additional compensation. None of these individuals will receive special compensation for soliciting votes, which will be performed in addition to their regular duties, and some of them may not necessarily solicit proxies. Covista also has made arrangements with brokerage firms, banks, record holders, and other fiduciaries to forward proxy solicitation materials to the beneficial owners of shares they hold on your behalf. Covista will reimburse these intermediaries for reasonable out-of-pocket expenses. We have hired Innisfree M&A Incorporated to help us distribute and solicit proxies. Covista will pay Innisfree $25,000 plus expenses for these services. Covista will pay the cost of all proxy solicitation.