Question:  Visy Industries was established in Melbourne, Australia in 1948 and has since grown to become one of the world’s largest privately owned paper, packaging and recycling companies, Visy was owned by Richard Pratt until his death, on which date, was a prominent Australian businessman, chairman of the privately owned company Visy Industries, and a leading figure of Melbourne society?
Context: Starchaser Industries is a privately owned company based in the UK whose principal aim is to become a viable business in space tourism.  Formed in 1992, the company has designed and built several rocket systems - all prototypes - to investigate the feasibility of producing a space tourism vehicle.  Starchaser's rocket NOVA 1, launched in 2001 from Morecambe Bay, still holds the UK record for the biggest successful rocket launch ever fired from the British mainland.  Since 2002, Starchaser have operated an Educational Outreach Programme that has grown steadily to become a now major aspect of the company.  This arm of the company aims to take traditionally difficult and abstract areas of physics and chemistry and explain their use in rocket building. Alghanim Industries is one of the largest privately owned companies in the Persian Gulf region, predominantly in Kuwait.  A multinational company in outlook with operations in 40 countries, Alghanim Industries is a multibillion-dollar conglomerate with more than 30 businesses.  They also fund projects and provide loans for non-UAE/Middle East countries.  Alghanim Industries claimed that it collected revenues of $2.5 billion in 2009, but has not disclosed its financial standing since. Duro Bag Mfg is the largest paper bag manufacturer in the world and produces paper bags for numerous companies in the US.  An unofficial description of the company's reach in the paper bag market segment is "If you held a paper bag today, it was probably made by Duro."  Duro Bag Mfg was founded in Covington, Kentucky in 1953 by Mr. S. David Shor and is still a privately owned company.  Charles Shor, who became President and Chief Executive Officer in 1987, ran the company started by his father until July 1, 2014. Visy Industries was established in Melbourne, Australia in 1948 and has since grown to become one of the world’s largest privately owned paper, packaging and recycling companies.  Today, Visy employs more than 9500 people in Australia and the United States (where it is known as Pratt Industries USA), with total sales exceeding more than $5 billion.  Visy was owned by Richard Pratt until his death on 28 April 2009.  when his son Anthony Pratt assumed the role of Executive Chairman.  He has also presided over a major expansion into the Asian packaging market and moved to position Visy as a key player in food security for the region. Anthony Joseph Pratt (born 11 April 1960 in Melbourne, Victoria), an Australian businessman and billionaire, is the Executive Chairman of Visy Industries and Pratt Industries in America, which is the world’s largest privately owned packaging and paper company.  According to the 2017 "Financial Review" Rich List, Pratt and his family have a net worth of A$ 12.60 billion; making Pratt and his family the richest in Australia.  "Forbes" assessed Pratt's net worth in 2016 at 4.2 billion; listing his sisters' wealth independently. Zanker Recycling is a privately owned company that developed from a landfill into a resource management and recycling facility, located in San Jose, CA. Energy Products Inc. is a privately owned company based in Madison Heights, Michigan.  They are a provider of batteries, chargers, industrial utility vehicles, scrubbers/sweepers and recycling services.  They sell and maintain industrial batteries and charging systems for forklifts, material handling equipment, AGV’s and utility vehicles used primarily in manufacturing and warehousing.  Energy Products is also a wholesale distributor of automotive, deep cycle and sealed lead acid batteries as well as batteries and chargers for consumer electronic devices.  In 2012 Energy Products started engineering, furnishing and installing backup power systems, service testing and provides removal services for a wide range of customers including banks, hospitals, property managers and the telecommunication industry.  Energy Products offers a comprehensive recycling program for all battery chemistries.  In 2013 they announced they recycled over 2,000,000 pounds of batteries in 2012 for customers located throughout the United States. Banfield Pet Hospital is a privately owned company based in Vancouver, Washington, United States, that operates veterinary clinics.  Part of the Mars, Incorporated family of companies, Banfield owns clinics in the United States, Mexico, and the United Kingdom.  Founded in 1955, the company operates many of its 800 plus clinics inside PetSmart stores.  Banfield is the largest privately owned veterinary practice in the United States.  On April 2, 2014, Banfield Pet Hospital announced its headquarters would be relocating to Vancouver, Washington, from nearby Portland, Oregon. Richard J. Pratt (born Ryszard Przecicki; 10 December 193428 April 2009) was a prominent Australian businessman, chairman of the privately owned company Visy Industries, and a leading figure of Melbourne society.  In the year before his death Pratt was Australia's fourth-richest person, with a personal fortune valued at  billion. Minnetonka ( ) is a suburban city in Hennepin County, Minnesota, United States, eight miles (13 km) west of Minneapolis.  The population was 49,734 at the 2010 census.  The name comes from the Dakota Indian "mni tanka", meaning "great water".  The city is the home of Cargill, the country's largest privately owned company, and United Healthcare, the state's largest publicly owned company.
Answer: 28 April 2009