EXHIBIT 99.1 For Immediate Release Bank Contact: Paul A. Miller (978) 725-7555 LSB Corporation Declares Cash Dividend Dividend Yield 2.92% NORTH ANDOVER, Mass. -- (BUSINESS WIRE) - July 25, 2003 -- LSB Corporation, (NASDAQ - LSBX), today announced the Board of Directors of LSB Corporation declared a dividend to shareholders on July 24, 2003. The Board voted to pay a cash dividend of $0.12 per share on its outstanding shares of common stock payable on August 21, 2003 to shareholders of record at the close of business on August 7, 2003. This represents a 2.92% dividend yield based on the stock price at the close of business on July 24, 2003. LSB Corporation is the parent holding company of its wholly-owned subsidiary Lawrence Savings Bank located in North Andover, Massachusetts, an Equal Housing Lender and Member, FDIC/Depositors Insurance Fund. 5