KMG Chemicals has commenced an underwritten public offering of 2,600,000 shares of its common stock. This will be subject to market and other conditions. The company will grant the underwriters an option to purchase up to an additional 390,000 shares of its common stock. Proceeds from the offering will be used for general corporate purposes, which may include, among other things, debt repayment and working capital.

Goldman Sachs & Co. and KeyBanc Capital Markets are acting as joint book-running managers for the offering. Seaport Global Securities, Nomura Securities International and HSBC Securities (USA) are acting as co-managers for the offering. The offering will be made only by means of a preliminary prospectus supplement and the accompanying base prospectus.

Alternatively, the underwriters will arrange to send the preliminary prospectus supplement and related base prospectus if they are requested.The common stock will be issued and sold pursuant to an effective shelf registration statement on Form S-3 previously filed with the SEC.

KMG Chemicals through its subsidiaries produces and distributes specialty chemicals and performance materials for the semiconductor, industrial wood preservation, and pipeline and energy markets.