As o November 4,2017, William Sinclair Holdings PLC went out of business. William Sinclair Holdings PLC manufactures and distributes a range of products for the retail and professional horticultural markets primarily in the United Kingdom, the Middle East, the Far East, Europe, and other countries. Its gardening products comprise barks and mulches, composts, control products, green and organic range, greenhouse care products, home composting products, insects, lawn care products, other growing media, plant foods, pots and mulch mats, propagation, sand and grits, slugs and snails, soil conditioners, and tree care products; and horticulture products include growing media, fertilizers, compost additives, and peat, as well as turf fertilizers, such as lawn sand, granular and turf feed, weed, and moss killer. The company’s aggregate products consist of perlite, silvapor, vermiculite, expanded clay, and ducamix used in various applications, such as absorbents, acoustic insulation, animal feeds, backfill for firebacks and boilers, barbeque bases, building construction, carrier for additives, castables, cavity fill, chimney linings, compost formulations, cryogenics, drainage insulation, and fillers and extenders. Its aggregate products are also used in fireplace slabbing, fireproofing, fireproof linings for safes, friction linings, insulation, landscaping, lightweight concrete, limecrete, loose fill insulation, packaging materials, pipe and duct insulation, plasters, pre-fabricated chimney linings, pre-formed and insulated shapes, refractories, swimming pool bases, textured paints and coatings, tile adhesives, and waste absorbents. The company sells its products primarily under the J. Arthur Bowers, Growing Success, and Deadfast brands. William Sinclair Holdings PLC was founded in 1850 and is based in Lincoln, the United Kingdom.