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Lumentum Holdings Inc is a California-based technology firm. The company provides two types of optical and photonic products: optical components that are used in telecommunications networking equipment, and commercial lasers for manufacturing, inspection, and life-science lab uses. Its segments are Optical Communications and Commercial Lasers. The firm is also expanding into new optical applications, such as 3-D sensing laser diode for consumer electronics. It generates maximum revenue from the OpComms segment. The OpComms segment products include a wide range of components, modules, and subsystems to support customers including carrier networks for access (local), metro (intracity), long-haul, and submarine (undersea) applications.
Knife River Holding Co formerly Knife River Corp provides construction materials and contracting services throughout the western, central, and southern United States. Knife River produces and delivers aggregates and markets crushed stone, sand, gravel, and related construction materials, including ready-mix concrete, asphalt, and other value-added products. It also distributes cement and asphalt oil. It has more than 1 billion tons of aggregate reserves, 110 ready-mix plants, 50 asphalt plants, and a combined 410,000 tons of liquid asphalt and cement storage. The company also performs integrated contracting services for most types of aggregate-related construction, including roads, freeways, bridges, residential properties, schools, shopping centers, office buildings, and industrial parks.