Photo by: SlavkoSereda/iStock/Getty Images Plus/Getty Images Vulcan Materials, Martin Marietta, Summit Materials, Cemex, MDU Resources, Granite Construction and USLM released their third-quarter 2019 results. Check out how each company performed. Vulcan Materials Third-quarter aggregate sales increased 15 percent at Vulcan Materials Co., and gross profit was up 18 percent to $357 million. According to Vulcan, unit margins increased 46 cents per ton, or 9 percent, to $5.87 per ton. "We continued to execute well during the third quarter," says Tom Hill, Vulcan chairman and CEO. "The growth in our aggregates shipments and improvement in pricing were strong." Read more. Martin Marietta Martin Marietta established records for revenues and profits in the third quarter of 2019, and it exhibited widespread shipment and pricing strength across the majority of its building materials business.