Question: Which holding company owns the manufacturer of the FN P90?
Context: T. K. Brøvig AS is a Norwegian holding company concentrating on bus operation in Vest-Agder.  The company owns Bussen Trafikkselskap, Sørlandsruta and Vaagsbygdruta.  The holding company was founded in 1965 by Tørres Kristian Brøvig and now controls about 85% of all bus operations in Vest-Agder.  In total the corporation has 410 employees, 210 buses and a revenue of NOK 235 million per year. The Heckler & Koch MP7 "(Machine Pistol 7)" is a German Personal Defence Weapon (PDW) designed and manufactured by Heckler & Koch (H&K) and chambered for the HK 4.6×30mm cartridge.  It was designed with the new cartridge to meet NATO requirements published in 1989, as these requirements call for a personal defense weapon (PDW) class firearm, with a greater ability to penetrate body armor than current weapons limited to conventional pistol cartridges.  The MP7 went into production in 2001.  It is a direct rival to the FN P90, also developed in response to NATO's requirement.  The weapon has been revised since its introduction and the latest production variants are the MP7A1 and MP7A2. <ref name="Heckler & Koch HK MP7 Submachine Gun / Machine Pistol July 30, 2012"> </ref> Commercial National Financial Corporation is a registered financial holding company under the Bank Holding Company Act of 1956 as amended.  The company wholly owns Commercial Bank & Trust of PA under the Bank Holding Company Act.  The company’s principal business is the operation of Commercial Bank & Trust of PA, which offers various commercial banking and trust services including offering deposit services, providing financial counseling, investing and extending credit.  Commercial National Financial Corporation uses CNAF as the trading symbol on the OTCQB tier of the OTC Markets. The FN 5.7×28mm is a small-caliber, high-velocity cartridge designed and manufactured by FN Herstal in Belgium.  It is a bottlenecked centerfire cartridge that is somewhat similar to the .22 Hornet or .22 K-Hornet.  Unlike many new cartridges, it has no parent case; the complete package was developed from scratch by FN.  The 5.7×28mm was developed in conjunction with the FN P90 personal defense weapon (PDW) and FN Five-seven pistol, in response to NATO requests for a replacement for the 9×19mm Parabellum cartridge. American Casino & Entertainment Properties (ACEP) is a casino holding company headquartered at the Stratosphere Las Vegas.  ACEP was a wholly owned subsidiary of American Real Estate Partners before it was sold to Whitehall Street Real Estate Funds, an investment arm of Goldman Sachs, in February 2008.  The company owns the following 4 casinos: Aquarius Casino Resort, Arizona Charlie's Decatur, Arizona Charlie's Boulder, and Stratosphere Las Vegas. Fabrique Nationale d'Herstal (French for: National Factory of Herstal), self identified as FN Herstal and often referred to as Fabrique Nationale or simply FN, is a leading firearms manufacturer located in Herstal, Belgium, and is owned by the holding company Herstal Group which is owned by the regional government of Wallonia.  It is currently the largest exporter of military small arms in Europe. Textainer Group Holdings Limited is a holding company that focuses on purchasing, leasing, and resale of marine cargo containers.  The company was set up in 1979 and is based in Hamilton, Bermuda.  There are three business segments: Container Ownership, Container Management, and Container Resale.  As of January 22, 2014, the company was the lessor of about two million intermodal containers.  The company leases containers to more than 400 shipping lines and other lessees.  In October 2012, it acquired about 81,000 twenty-foot equivalent units (TEUs) of dry freight containers from managed fleet.  In December 2012, the company acquired a 50.1% interest in TAP Funding Ltd.  In January 2013, the company acquired about 24,000 twenty-foot equivalent units of standard dry freight containers from its managed fleet.  The company owns two subsidiaries, Textainer Equipment Management Limited (TEML) and Textainer Limited (TL).  TL owns two subsidiaries, Textainer Marine Containers Limited (TMCL) and TW Container Leasing Ltd. (owned by TL and Wells Fargo Container Corp. . The AR-57, also known as the AR Five-seven, is an upper receiver for the AR-15/M16 rifle lower receiver, firing 5.7×28mm rounds from standard FN P90 magazines.  It was designed by AR57 LLC and is currently produced by AR57 of Kent, Washington, USA.  The AR-57 PDW Upper is a new design on AR-15/M16 rifles, blending the AR-15/M16 lower with a lightweight, monolithic upper receiver system chambered in FN 5.7×28mm.  This model is also sold as a complete rifle, supplied with two 50-round P90 magazines.  The magazines mount horizontally on top of the front handguard, with brass ejecting through the magazine well.  Hollow AR-15 magazines can be used to catch spent casings. People's United Financial, Inc. is a savings and loan holding company incorporated under the state laws of Delaware.  The company owns People's United Bank, a federally chartered stock savings bank headquartered in Bridgeport, Connecticut.  People's United Bank is the second largest independent bank headquartered in New England, behind Citizens Financial Group. The FN P90, also known as the FN Project 1990, is a personal defense weapon (PDW) designed and manufactured by FN Herstal in Belgium.  Created in response to NATO requests for a replacement for 9×19mm Parabellum firearms, the P90 was designed as a compact but powerful firearm for vehicle crews, operators of crew-served weapons, support personnel, special forces, and counter-terrorist groups.
Answer: Herstal Group