Question: Where are the headquarters of the business that includes Houghton Wines as a subsidiary?

Context paragraphs:
Houghton-Portage Township Schools: Houghton-Portage Township Schools (abbr.  HPTS) is a school district that covers the city of Houghton, Michigan and Portage Township.  It includes three schools: Houghton High School, Houghton Middle School, and Houghton Elementary School.

Chenin blanc: Chenin blanc (known also as Pineau de la Loire among other names) is a white wine grape variety from the Loire Valley of France.  Its high acidity means it can be used to make everything from sparkling wines to well-balanced dessert wines, although it can produce very bland, neutral wines if the vine's natural vigor is not controlled.  Outside the Loire it is found in most of the New World wine regions; it is the most widely planted variety in South Africa, where it is also known as Steen.  The grape may have been one of the first to be grown in South Africa by Jan van Riebeeck in 1655, or it may have come to that country with Huguenots fleeing France after the revocation of the Edict of Nantes in 1685.  Chenin blanc was often misidentified in Australia as well, so tracing its early history in the country is not easy.  It may have been introduced in James Busby's collection of 1832, but C. Waterhouse was growing Steen at Highercombe in Houghton, South Australia by 1862.

Franzia: Franzia is a brand of wine produced by The Wine Group, known for its box wines sold in 3 and 5-liter cartons.  Franzia wines, throughout their history, were known as affordable table wines, popular in the 1960s and 1970s as "jug wine", and now as "box wine".  The Wine Group is the third largest wine company in the world, behind Constellation Brands and the E&J Gallo Winery.  The Franzia brand today has no business relationship with Fred Franzia of the Bronco Wine Company, known for its low-cost Charles Shaw wines.  The Franzia family sold the brand to Coca-Cola in 1973 when Fred Franzia was in his early adult years; and it was sold to The Wine Group in 1981.

Giulio Cocchi Spumanti: Giulio Cocchi Spumanti is a winery based in Asti, in the Italian Piedmont region, since 1891.  The company was founded by Giulio Cocchi, a pastry chef originally from Tuscany who moved his business to the north-western Italian town of Asti in the late 19th century.  The founder was interested in the pairing of food and wines he found in Asti, the capital of Moscato wines, and began producing aromatic-infused wines and sparkling wines. By the turn of the century his Barolo Chinato and Aperitivo Americano had become commercially successful in Piedmont, London, New York, Africa and South America.

Four Seasons Wines: Four Seasons Wines Limited is an Indian winery which was established in 2006,based in Bangalore, India.  It produces wines from grapes grown around Sahyadri valley in Maharashtra. It is a subsidiary of United Spirits Limited(USL) of the UB Group.  Four Seasons Wines Limited manufactures and markets wines in India.  It provides red, white, and rose wines.  Four Seasons Wines markets its wines under the two brand names Zinzi and Four Seasons.

Anjou wine: Anjou wine is produced in the Loire Valley wine region of France near the city of Angers.  The wines of region are often grouped together with the wines of nearby Saumur as "Anjou-Saumur".  Along with the wines produce further east in Touraine, Anjou-Saumur make what is collectively known as the "Middle Loire" (as opposed to the "Upper Loire" which includes the wine regions of Sancerre and Pouilly-Fumé.  Within the Anjou wine region are several "Appellation d'origine contrôlée" (AOC)s responsible for a broad spectrum of wines including still red, white and rosé produced with varying levels of sweetness.  Extending across the Deux-Sèvres, Maine-et-Loire and Vienne "départements", the generic Anjou AOC appellation and its various sub-appellations encompasses vineyards across more than 151 communes.

Vivino: Vivino is an online wine community, database and mobile application where users can buy, rate and review wines.  Vivino was founded in July 2009 by Heini Zachariassen and Theis Sondergaard.  , Vivino has a wine database containing over 3 million different wines, and has 6.8 million users.  In July 2013, the database had 1 million wines.  Vivino's headquarters are in Copenhagen, Denmark, but the company also has offices in the USA, Ukraine and India.

Loire Valley (wine): The Loire Valley wine region includes the French wine regions situated along the Loire River from the Muscadet region near the city of Nantes on the Atlantic coast to the region of Sancerre and Pouilly-Fumé just southeast of the city of Orléans in north central France.  In between are the regions of Anjou, Saumur, Bourgueil, Chinon, and Vouvray.  The Loire Valley itself follows the river through the Loire province to the river's origins in the Cévennes but the majority of the wine production takes place in the regions noted above.  The area includes 87 appellations under the "Appellation d'origine contrôlée" (AOC), "Vin Délimité de Qualité Superieure" (VDQS) and "Vin de pays" systems.  While the majority of production is white wine from the Chenin blanc, Sauvignon blanc and Melon de Bourgogne grapes, there are red wines made (especially around the Chinon region) from Cabernet franc.  In addition to still wines, rosé, sparkling and dessert wines are also produced.  With "Crémant" production throughout the Loire, it is the second largest sparkling wine producer in France after Champagne.  Among these different wine styles, Loire wines tend to exhibit characteristic fruitiness with fresh, crisp flavors-especially in their youth.  The Loire Valley has a long history of winemaking dating back to the 1st century.  In the High Middle Ages, the wines of the Loire Valley were the most esteemed wines in England and France, even more prized than those from Bordeaux.

Houghton Wines: Houghton Wines is an Australian winery based at Middle Swan, in the Swan Valley, the focal point of the Swan District wine region of Western Australia.  A subsidiary of Accolade Wines, the company operates one of Western Australia's earliest established vineyards and wineries.

Accolade Wines: Accolade Wines is a major global wine business with headquarters in South Australia.

Supporting paragraphs: Houghton Wines Accolade Wines
Answer: South Australia