Question: 1990 International Trans-Antarctica Expedition was sponsored by which American manufacturing company?
Context: Vaughan & Bushnell Manufacturing, also known as Vaughan Manufacturing and branded as simply Vaughan, is an American manufacturing company that specializes in the production of hammers, axes, prybars, and hand saws.  The company produces more than 250 different kinds of hammers. 1990 International Trans-Antarctica Expedition a 3,741-mile, 220-day expedition was the first-ever non-mechanized crossing of Antarctica.  The six-member, international team was co-led by U.S. team member, Will Steger and French team member, Dr. Jean-Louis Étienne.  The other team members were Victor Boyarsky (Soviet Union), Geoff Somers (Great Britain), Qin Dahe (China) and Keizo Funatsu (Japan).  The expedition was operated in partnership with the Soviet Arctic and Antarctic Research Institute through a joint venture.  Primary expedition sponsors were W. L. Gore and Associates and Union d'Assurances de Paris (UAP). Silgan Holdings is a Connecticut-based American manufacturing company that produces consumer goods packaging.  The company was founded in 1987 by two former executives of Continental Can, Phil Silver and Greg Horrigan - their names contributing to the company name.  Through several acquisitions of rival companies, and the pursuit of contracts with Del Monte Foods and Nestlé, Silgan Holdings' share of the market rose from 10% in 1987 to 36% in 1995.  Later acquisitions in the late 1990s and early 2000s left the company with debt problems noted by both "Forbes" and the "New York Times", however by the early 2010s the company was consistently profitable. Energy Manufacturing Co., Inc. is an American manufacturing company based in Monticello, Iowa.  Established in 1944, the company produces a variety of hydraulic cylinders, hydraulic pumps, valves, and power systems. TABC is a manufacturing plant in Long Beach, California, located at 6375 North Paramount Boulevard.  Established in 1972, TABC is the oldest Toyota North American manufacturing company.  A subsidiary of TEMA (Toyota Motor Engineering & Manufacturing North America Inc.), the plant occupies 30 acre .  It is the primary supplier of parts for the Toyota Tacoma truck sub-assembly.  It also produces stamped metal components for Toyota Corolla, Toyota Matrix, and Pontiac Vibe cars. The Standard Sanitary Manufacturing Company was an American manufacturer of bathroom fixtures.  It was formed in 1899 by the merger of the Ahrens and Ott Manufacturing Company, the Standard Manufacturing Company, the Dawes and Myler Manufacturing Company, and 6 other plants which were consolidated to form the Standard Manufacturing Company, headquartered in Pittsburgh, with Theodor Ahrens (Jr.) as its first president.  He held this position, and others, until 1934. W. L. Gore & Associates, Inc. is an American multinational manufacturing company specializing in products derived from fluoropolymers.  It is a privately held corporation headquartered in Newark, Delaware.  It is best known as the developer of waterproof, breathable Gore-Tex fabrics. The Bemis Manufacturing Company is an American manufacturing company based in Sheboygan Falls, Wisconsin and is best known for its toilet seat products.  Bemis also manufactures plastic lawn, commercial, and indoor furniture, suction canisters, sharps containers, fluid management systems, gas caps, gauges and various contracted extrusion and injection molded plastic parts for companies such as John Deere and Whirlpool Corporation.  The company is a pioneer of co-injection molding, a process in which virgin resin is injected with scrap plastic.  Bemis' plastic work has won a number of awards in the SPI Structural Plastics Div.  design competition, particularly with the John Deere 7000 tractor, which is believed to represent the first instance of coinjection molding "to large parts where a recycled engineering material (ABS) is used in the core". Workhorse Group Incorporated is an American manufacturing company based in Ohio, currently focused on manufacturing electrically powered delivery and utility vehicles.  The company was founded in 1998 by investors who took over the production of General Motors' P30/P32 series stepvan and motorhome chassis.  By 2005 they were taken over by Navistar International, which had been selling them diesel engines since before.  Navistar then shuttered the plant in 2012, to cut costs after having suffered heavy losses.  In March 2015 AMP Electric Vehicles took over Workhorse Custom Chassis, changing the company name to Workhorse Group Incorporated, and began offering a range of electrically powered delivery vans. The Holt Manufacturing Company traces its roots to the 1883 founding of Stockton Wheel Service in Stockton, California, United States.  Benjamin Holt, who was later credited with patenting the first workable crawler tractor design, incorporated the Holt Manufacturing Company in 1892.  Holt Manufacturing Company was the first company to successfully manufacture a continuous track tractor.  By the start of the 20th century, Holt Manufacturing Company was the leading manufacturer of combine harvesters in the United States and the leading California-based manufacturer of steam traction engines.
Answer: W. L. Gore & Associates, Inc.