Question: Where are the headquarters of a British multinational food processing and retailing company, who's brands include a brand of milk flavoring product made with malt extract?

Context paragraphs:
Tetra Laval: Tetra Laval is a privately held multinational corporation of Swedish origin, with headquarters in Pully, Switzerland.  The Tetra Laval Group provides packaging, processing and distribution solutions for a range of foodstuffs, including liquids, fruit and vegetables, ice-cream and processed food, additionally offering systems for agricultural production and herd management.  The group operates in five business segments: milk production, food preparation, food processing, food packaging and food distribution.  The Tetra Laval Group includes Tetra Pak, DeLaval and Sidel.  Tetra Laval was included in the Thomson Reuters 2011 list of Top 100 Global Innovators.

TreeHouse Foods: TreeHouse Foods Inc., located in Oak Brook, Illinois, is a multinational food processing company specializing in producing private label packaged foods.  Created in 2005 and consisting entirely of acquisitions, in 2010 the company had sales of $2 billion and employed over 4000 people at 20 facilities.  "Food Processing" magazine named them their 2010 Processor of the Year, calling them "the biggest company you never heard of."  The company is a component of the S&P 400 and in 2015 was the 37th-largest food and beverage company in North America.

Kroger: The Kroger Company, or simply Kroger, is an American retailing company founded by Bernard Kroger in 1883 in Cincinnati, Ohio.  It is the United States's largest supermarket chain by revenue ($115.34 billion for fiscal year 2016), the second-largest general retailer (behind Walmart) and the twenty-third largest company in the United States.  Kroger is also the third-largest retailer in the world and the second largest private employer in the United States.  s of 2015 , Kroger operates, either directly or through its subsidiaries, 2,778 supermarkets and multi-department stores.  Kroger's headquarters are in downtown Cincinnati.  It maintains markets in 34 states, with store formats that include supermarkets, superstores, department stores, 786 convenience stores, and 326 jewelry stores.  Kroger-branded grocery stores are located in the Midwestern and Southern United States.  Kroger operates 37 food processing or manufacturing facilities, 1,360 supermarket fuel centers and 2,122 pharmacies.

Ultra-high-temperature processing: Ultra-high temperature processing (UHT), ultra-heat treatment, or ultra-pasteurization is a food processing technology that sterilizes liquid food, chiefly milk, by heating it above 135 C  – the temperature required to kill spores in milk – for 1 to 2 seconds.  UHT is most commonly used in milk production, but the process is also used for fruit juices, cream, soy milk, yogurt, wine, soups, honey, and stews.  UHT milk was first developed in the 1960s and became generally available for consumption in the 1970s.

Sigma Alimentos: Sigma Alimentos, S.A. de C.V., also known as Sigma or Sigma Alimentos, is a Mexican multinational food processing and distribution company headquartered in San Pedro, near Monterrey, Mexico.  It produces and distributes refrigerated foods, mainly lunch meats, cheeses, and yogurts.  It is one of the largest producers and distributors of refrigerated foods in Mexico, some of its well-known brands are "Fud", "Chen", "San Rafael", "Guten", and "Yoplait".  It is a subsidiary of the Mexican industrial conglomerate Alfa.

Seamark Group: Seamark Group is a multinational food processing conglomerate wholesale company with offices in Manchester, Chittagong, New Jersey and Brooklyn.  The company was founded in 1976 and established in 1991 by Iqbal, Bilal and Kamal Ahmed; its headquarters is in Manchester, England, and the company has over 4,500 employees.  The company is the UK's leading importer and processor of shrimps.

Kingfisher plc: Kingfisher plc is a British multinational retailing company headquartered in London, with regional offices located across the U.K. in locations such as Cardiff, Edinburgh and Dublin.  It is the largest home improvement retailer in Europe, and the third largest in the world (behind The Home Depot and Lowe's).  It has over 1,176 stores, in eleven countries across Asia and Europe, and its brands include B&Q, Castorama, Brico Dépôt and Screwfix.

Ovaltine: Ovaltine (Ovomaltine) is a brand of milk flavoring product made with malt extract (except in the blue packaging in the United States), sugar (except in Switzerland), and whey.  Some flavors also have cocoa.  Ovaltine, a registered trademark of Associated British Foods, is made by Wander AG, a subsidiary of Twinings which acquired the brand from Novartis in 2002, except in the United States where Nestlé acquired the rights separately from Novartis later on.

Radio Malt: Radio Malt was an early to mid-20th century brand of malt extract preparation that followed the Minadex trend.  Produced by British Drug Houses, it contained vitamin A, aneurine hydrochloride, riboflavin, and calciferol.  The contents were sickly sweet, with a consistency between molasses and treacle.  It is much loved by George Molesworth ("Molesworth 2"), brother of the classic schoolboy character Nigel Molesworth.

Associated British Foods: Associated British Foods plc (ABF) is a British multinational food processing and retailing company whose headquarters are in London, United Kingdom.  Its ingredients division is the world's second-largest producer of both sugar and baker's yeast and a major producer of other ingredients including emulsifiers, enzymes and lactose.  Its grocery division is a major manufacturer of both branded and private label grocery products and includes the brands Mazola, Ovaltine, Ryvita, Jordans and Twinings.  Its retail division, Primark, has around 325 stores with over 65,00000 sqft of selling space across Austria, Belgium, Germany, Ireland, the Netherlands, Portugal, Spain, the UK, and the United States.

Supporting paragraphs: Associated British Foods Ovaltine
Answer: London, United Kingdom