Exhibit 99.1 For Immediate Release ATMI REPORTS SECOND QUARTER 2004 RESULTS ATMI REPORTS SECOND QUARTER 2004 RESULTS DANBURY, CT-- July 21, 2004-- ATMI, Inc. (Nasdaq: ATMI), a supplier of materials and materials packaging to the world's leading semiconductor manufacturers, today announced revenues of $61.0 million for the second quarter of 2004, an increase of 52.5% from $40.0 million in the second quarter of 2003, and an increase of 8.9% over $56.0 million in the first quarter of 2004. Continuing operations in the second quarter generated income of $5.8 million, or $0.18 per diluted share. In the second quarter of 2003, income from continuing operations was $0.1 million, or $0.00 per diluted share, including a $2.2 million pre-tax asset impairment charge related to the Company's strategic investment portfolio and a $0.4 million charge related to transitioning product lines to a new manufacturing facility. In the first quarter of 2004, continuing operations generated income of $4.0 million, or $0.12 per diluted share. Overall, net income for the second quarter was $7.9 million, or $0.25 per diluted share, which includes $0.06 per diluted share from the performance of discontinued operations, and a gain of $0.01 per diluted share from sale of the life safety systems and fab services operations that closed during the quarter. For the second quarter of 2003, net loss was $2.8 million, or $0.09 per diluted share, which included a loss of $0.09 per diluted share from discontinued operations. Net income for the first quarter of 2004 was $6.1 million, or $0.19 per diluted share, including $0.04 per diluted share from the performance of discontinued operations and a gain of $0.03 per diluted share related to the sale of the gallium nitride business. For the six months ended June 30, revenue from continuing operations totaled $117.0 million, an increase of 51.9% compared with $77.0 million for the first half of 2003. Income from continuing operations was $9.8 million, or $0.31 per diluted share, compared with $1.0 million, or $0.03 per diluted share, in the same period last year. Overall net income for the first six months of 2004 was $14.0 million, or $0.44 per diluted share, which includes $0.09 per diluted share from the performance of discontinued operations, and a gain of $0.04 per diluted share from sale of three of the six discontinued operations. Gene Banucci, ATMI Chairman and Chief Executive Officer, said, "The semiconductor industry continues to increase production of wafers with a second quarter sequential increase of approximately 4% worldwide. This is again slightly higher than our projections and as a result ATMI's revenues continued to ramp aggressively for the third consecutive quarter. It is our expectation that wafer starts will continue to grow in the third quarter, but at a moderated pace." Doug Neugold, ATMI President and Chief Operating Officer, said, "This quarter, our copper businesses continued to perform well and we again achieved strong results in our implant materials and photoresist packaging products. At Semicon West, we introduced several new products and process efficiency solutions in which customers expressed a high level of interest, especially SDS3. Looking forward, we see no slowdown in the pace of technology development. Given our recent qualifications and joint development activities at the 65 nm technology node, we are well positioned to capture future generation advanced interconnect opportunities." -more- ATMI Reports Second Quarter 2004 Results -- Page 2 Dan Sharkey, ATMI Chief Financial Officer, said, "The second quarter stood out because of record sales of sub-atmospheric gas storage and delivery products, and equally strong flat panel display demand for our materials packaging products. Combined with the resolution of our first quarter expedited delivery issues, this had the expected effect of increasing gross margins to above 50%. On the divestiture front, the second quarter was very busy with deals completed for the sale of our life safety system business, our fab services business, and our epitaxial services business, which closed on July 19th. We are presently engaged in active discussions with multiple parties concerning our remaining discontinued operations, our abatement systems business and our Emosyn smart card venture. We believe we are still on track to have divested all 6 discontinued operations before the end of 2004." ATMI provides specialty materials and materials packaging to the worldwide semiconductor industry. For more information, please visit atmi.com. Statements contained herein that relate to ATMI's future performance, including, without limitation, statements with respect to ATMI's anticipated results of operations or level of business for 2004 or any other future period, are forward-looking statements within the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Such statements are based on current expectations only and are subject to certain risks, uncertainties, and assumptions, including, but not limited to: changes in semiconductor industry growth or ATMI's markets; competition, problems, or delays developing and commercializing new products; problems or delays in integrating acquired operations and businesses into ATMI; problems or delays associated with any restructuring activity, including resolution of the various discontinued elements of ATMI's Technologies segment; and other factors discussed in ATMI's filings with the Securities and Exchange Commission. Such risks and uncertainties could cause actual results to differ from those projected. ATMI undertakes no obligation to publicly update or revise any forward-looking statements, whether because of new information, future events or otherwise. Note: A conference call (800.289.0544) discussing financial results will begin at 11:00 a.m. Eastern time, July 21st, 2004. A replay (888.203.1112, PIN 637528) of the call will be available for 48 hours. An audio webcast of the conference call will be available for 30 days on atmi.com. # # # # For more information contact: Dean Hamilton ATMI 203.207.9349 Direct 203.794.1100 x4202 dhamilton@atmi.com ------------------ ATMI Reports Second Quarter 2004 Results -- Page 3 ATMI, INC. SUMMARY STATEMENTS OF OPERATION (in thousands, except per share data) Three Months Ended Six Months Ended June 30, June 30, --------------------------- --------------------------- 2004 2003 2004 2003 ---- ---- ---- ---- Revenues $ 60,978 $ 39,983 $ 116,997 $ 77,022 Cost of revenues 30,299 19,720 59,091 38,614 --------- --------- --------- --------- Gross profit 30,679 20,263 57,906 38,408 --------- --------- --------- --------- Operating expenses R & D 4,786 4,271 9,527 8,474 S, G, & A 16,196 12,575 31,880 25,202 --------- --------- --------- --------- 20,982 16,846 41,407 33,676 --------- --------- --------- --------- Operating income 9,697 3,417 16,499 4,732 Other expense, net (886) (3,398) (1,583) (3,417) --------- --------- --------- --------- Income before taxes 8,811 19 14,916 1,315 Income taxes (benefit) 2,996 (89) 5,133 283 --------- --------- --------- --------- Income from continuing operations 5,815 108 9,783 1,032 Income (loss) from operations of discontinued operations 1,714 (2,882) 2,834 (5,424) Gain on disposal of discontinued operations 333 -- 1,357 -- --------- --------- --------- --------- Net income (loss) $ 7,862 ($ 2,774) $ 13,974 ($ 4,392) ========= ========= ========= ========= Diluted earnings per share from continuing operations $ 0.18 $ 0.00 $ 0.31 $ 0.03 Diluted earnings (loss) per share from operations of $ 0.06 ($ 0.09) $ 0.09 ($ 0.17) discontinued operations Diluted earnings per share from gain on disposal of discontinued operations $ 0.01 -- $ 0.04 -- Diluted earnings (loss) per share $ 0.25 ($ 0.09) $ 0.44 ($ 0.14) Weighted average shares outstanding 31,711 31,117 31,747 31,014 ATMI Reports Second Quarter 2004 Results -- Page 4 ATMI, INC. SUMMARY BALANCE SHEETS (in thousands) Balance Sheet Highlights June 30, December 31, 2004 2003 -------- ----------- Assets Cash & marketable securities $152,412 $128,700 Accounts receivable, net 40,332 38,439 Inventory, net 33,595 21,564 Assets held for sale 64,831 84,736 Other current assets 28,425 16,280 -------- -------- Total current assets 319,595 289,719 Fixed assets, net 67,336 64,673 Other assets 56,053 60,050 -------- -------- Total assets $442,984 $414,442 -------- -------- Liabilities and stockholders' equity Accounts payable $ 13,748 $ 11,743 Short-term debt 847 1,047 Liabilities held for sale 11,211 7,196 Other current liabilities 28,593 24,799 -------- -------- Total current liabilities 54,399 44,785 Long-term debt 115,119 115,290 Other long-term liabilities 197 116 Stockholders' equity 273,269 254,251 -------- -------- Total liabilities & stockholders' equity $442,984 $414,442 -------- --------