Edward A. Schlesinger
Executive Vice President and Chief Financial Officer at Corning
All right. Thank you, Wendell. Good morning, everyone. As expected, in the second quarter, we improved profitability and cash flow in an overall weak demand environment. Second quarter sales were $3.5 billion, up 3% sequentially. EPS was $0.45, increasing $0.04 from the prior quarter. Gross margin and operating margin increased sequentially by a 100 basis points to 36.2% and 200 basis points to 17.5%, respectively, reflecting progress on our pricing and productivity improvement actions. These results demonstrate the progress on and benefits from our comprehensive approach to improve profitability and cash flow, including continued actions to offset inflationary costs, return productivity levels to -- return productivity ratios to historical levels and reduce inventory.
Now, let's turn to our segment results. Let me start with Optical Communications. I shared with you back in May that we were not seeing the typical seasonal uptick in our orders. Near-term demand for passive optical network products remains weak. And as the quarter progressed, orders came in at the low end of our expectations. As a result, sales in the second quarter were $1,066 million, down 5% sequentially and 19% year-over-year. As I'm sure you're hearing across the industry, carriers and enterprise operators are pushing projects into 2024 due to high inflation and rising interest rates. For now, we are sizing our operational plans based on the orders in our books. Net income was $140 million, down 12% sequentially and 23% year-over-year. The decline on lower volume was moderated by productivity improvements, as I shared in the first quarter. We raised price in this segment to more appropriately share inflationary costs with customers. While the demand for passive optical network products remains weak, longer-term, we remain confident that the industry's underlying growth drivers are intact. We're pursuing four significant secular trends: broadband, 5G, the cloud and the paradigm shift in computation necessary to train large language models and other advanced AI. We've got major innovation programs underway for each category. And our connectivity solutions offer economic advantages for a broader range of customers than ever before, and demand for optical networks is strongly supported by trends in computation, as well as by private and public infrastructure investments to help connect the unconnected and bring broadband to a much larger share of the population.
Turning to Display Technologies. Sales in the second quarter were $928 million, up 22% sequentially and 6% year-over-year. Net income was $208 million, up 30% sequentially, primarily driven by higher volume. Second quarter panel maker utilization played out in line with the expectations I described three months ago. After reaching historic lows in 2022 and as recently as January, panel maker utilization has increased consistently, driving significant sequential volume increases. We believe that the display industry recovery is underway.
Now, let me update you on what has happened since our display price increase announcement in May. Since then, we've engaged with our customers and they understand our need to offset elevated costs. We expect to finalize agreements for double-digit price increases that will begin to go into effect in the third quarter. We expect our profitability to improve and to return to pre-pandemic levels as we exit the quarter.
Moving to Specialty Materials. Second quarter sales were down 13% year-over-year. This reflects continued end market softness. Sales increased 4% sequentially on higher Gorilla Glass sales. Net income was $33 million, down 15% sequentially, impacted by continued development costs for new product launches. Looking ahead, we believe that there are new innovation opportunities for us in emerging trends like: augmented reality, bendable devices and AI, that will extend our more Corning opportunities far into the future. For example, our world-leading optical materials and systems in our advanced optics business power EUV lithography technology. We enable the manufacturing of smaller, faster, more powerful chips, including GPUs. Global AI initiatives are accelerating demand for GPUs and for our EUV-related products.
In Environmental Technologies, second quarter sales were $457 million, up 6% sequentially and 28% year-over-year. Net income increased to $107 million on stronger sales and improved productivity.
In Automotive, our sales were up 8% sequentially, driven by the ramp of GPF sales in China based on regulations that are now in effect. We do not expect to see this level of GPF sales in China in the third quarter. Auto production levels remained steady quarter-over-quarter in North America and Europe. Year-over-year, our Automotive sales were up 40%, driven by the GPF ramp in China that I just mentioned and versus low auto sales in China during the 2022 COVID shutdowns and 2022 supply chain issues for automakers globally. In diesel, our sales were up 13% year-over-year, driven by heavy-duty demand in North America and Europe, which more than offset languishing demand in China.
Turning to Life Sciences. Second quarter sales were $231 million, down 10% sequentially and 26% year-over-year. Both the sequential and year-over-year sales declines resulted from lower demand for COVID-related products in China, and by customers continuing to draw down inventory. Net income increased sequentially to $11 million, with productivity improvements more than offsetting lower sales. We expect our sales and profitability to improve as the industry corrects and as we continue to restore productivity ratios back to pre-pandemic levels.
Finally, in Hemlock and Emerging Growth Businesses, sales in the second quarter were $377 million, consistent with the first quarter. Sales were down 10% year-over-year, partly associated with a decline in solar-grade polysilicon spot prices. We are seeing continued strong demand for solar-grade polysilicon required to meet the need for a transparent, sustainable and traceable solar supply chain in the U.S. market. And we have long-term take-or-pay contracts with our customers that have floor price mechanisms built in to help mitigate the impacts of spot market dynamics. Net income increased sequentially to $26 million, up 4% year-over-year, driven by productivity improvements.
Now, let me spend a minute on our outlook for the third quarter. As we've been sharing with you, we are planning our operations based on our current order run rate. And we're continuing to take pricing and productivity actions to improve profitability and cash flow. We're adopting the same philosophy for our guidance. Based on our current order run rate, we expect our sales to come in roughly in line with quarter two, approximately $3.5 billion. When orders begin to increase, we'll let you know. On roughly flat total Company sales, we expect improved profitability and cash flow. We expect EPS to come in about the same or slightly better than the second quarter, and this factors in sequentially higher interest expense and a slightly higher tax rate. Of course, there are differing dynamics in each of our businesses. At a high level, we expect improvements in Display and Specialty Materials to be offset by declines in Optical Communications, driven by the dynamics I previously mentioned, as well as declines in environmental, where we expect lower sales for GPF in China as the ramp is largely complete, and we expect lower demand for heavy-duty. We continue to expect 2023 full-year capital expenditures to be slightly lower than 2022.
Now, I'd like to wrap up with a few key takeaways. As CFO, I am pleased with our execution on many dimensions. Our second quarter results demonstrate the benefits of our comprehensive approach to address aftereffects of the pandemic. We're sharing inflationary costs with our customers. We're returning our productivity ratios to pre-pandemic levels and we are on track to normalize inventory. Additionally, we're undertaking initiatives to capture our next wave of growth opportunities. In the near-term, to enhance shareholder value, we remain focused on improving cash flow and profitability in the second half even at our current sales run rate and advancing innovations to outperform our end markets. We're seeing the recovery play out in Display, and we expect to see it play out across our other markets because the underlying fundamental drivers remain intact. Longer-term, we are well positioned to continue capturing growth tied to key secular trends and expect to grow faster than our markets, driven by our More Corning approach. So, I look forward to updating you on our progress.
Now, I'll turn things back over to Ann.