Question: In which city is the headquarters of the parent company of WesCEF ?

Context paragraphs:
SM-Chile: SM-Chile is a holding company for Banco de Chile.  Until 1996, when its Board of Shareholders agreed to become an investment company with exclusive turn, governed by Law No. 19,396, changing its name to Bank of Parent Company Chile SA' Simultaneously, the parent company of Banco de Chile SA created a commercial bank under the name Banco de Chile and was transferred all its assets and liabilities, excluding subordinated obligation call with the Central Bank of Chile, obligation undertaken following the banking crisis of the years 1982 - 1984 and the consequent bailout carried out by the Central Bank.  After this transformation, the sole shareholder of Banco de Chile was the parent company of Banco de Chile SA

Wesfarmers: Wesfarmers Limited is an Australian conglomerate, headquartered in Perth, Western Australia, with interests predominantly in Australian and New Zealand retail, chemicals, fertilisers, coal mining and industrial and safety products.  With AU$65.98 billion in the 2016 financial year, it is the largest Australian company by revenue, overtaking Woolworths and BHP Billiton.  Wesfarmers is the largest private employer in Australia, with approximately 205,000 employees.

Parent company guarantee: A parent company guarantee (PCG) is a guarantee by a parent company of a contractor’s performance under its contract with its client, where the contractor is a subsidiary of the parent company.

Structural subordination: In corporate finance, Structural subordination is the concept that a lender to a company will not have access to the assets of the company's subsidiary until after all of the subsidiary's creditors have been paid and the remaining assets have been distributed up to the company as an equity holder.  For example, if a lender loans money to a parent company, that lender is structurally subordinated to a lender who loaned money to a subsidiary operating company which is lower down in the company organizational structure.  The operating company lender is structurally senior, and the parent company lender can only be repaid from the operating assets after the operating company lender has been repaid.

Pivotal Games: Pivotal Games Limited was a British video game developer based in Corston, England, founded in March 2000 by fifteen ex-Pumpkin Studios employees, after it was shut down by its parent company, Eidos Interactive.  Led by Jim Bambra, Nick Cook and Alex McLean, of which Bambra and Cook had previously founded Pumpkin Studios in August 1996, the studio was formed under the Kaboom Studios umbrella, in order to establish a publishing relationship to Sales Curve Interactive (SCi, later renamed SCi Games).  Between 2002 and 2008, Pivotal Games developed all installments in the "Conflict" series, as well as "The Great Escape", based on the film of the same name.  In September 2003, after financial struggles of parent company Kaboom Studios, who had at that point had already closed down sister studios Attention to Detail and Silicon Dreams Studio, SCi showed interest in acquiring the company.  Kaboom Studios went into receivership on 9 September 2003, with all remaining assets, including still-active Pivotal Games, being transferred to Ernst & Young for sale.  On 29 September 2003, SCi acquired Pivotal Games from Ernst & Young for a total of GB£ .  In May 2005, SCi Games finalised its acquisition and merger with Eidos plc, the parent of Eidos Interactive, which would become in charge of SCi Games' subsidiaries.  In March 2008, SCi Games closed down fourteen operating projects to counter a GB£ net loss from the preceding fiscal year, leading to rumors that Pivotal Games was also to be closed.  On 14 July 2008, it was officially announced that the studio was to shut its doors, and 99 staff had already been made redundant, leaving only a team of 10–12 specialist personnel.  Pivotal Games was closed on 13 August 2008.

4th &amp; B'way Records: 4th & B'way Records (pronounced and spelled out completely as Fourth and Broadway Records in the UK) was a US-based subsidiary of Island Records that specialized in street-oriented music such as hip hop.  Established in 1984, it was the flagship label of the Island Trading Company, the independent-distribution parent company of Island's other record labels that operated in the US.  However, 4th & B'way was not distributed through major-label channels—the flagship Island label was distributed by Atlantic Records at that time—until the label and distribution company were acquired by PolyGram Records in 1989, when Island Trading became a unit of PolyGram Group Distribution and was renamed Independent Label Sales (ILS).  It was also one of several US-based Island labels that were named after nearby New York City streets when Island's US headquarters were located at 14 East 4th Street in Manhattan, the same building that held the legendary Greenwich Village branch of Tower Records, and also nearby at 400 Lafayette Street.  When Island moved its headquarters to the Worldwide Plaza Building at 825 8th Avenue in 1995, where PolyGram's US headquarters were also located, the empty 4th Street offices became the headquarters of V2 Records.

Zayre: Zayre was a chain of discount stores that operated in the eastern half of the United States from 1956 to 1990.  The company's headquarters was in Framingham, Massachusetts.  In October 1988, Zayre's parent company, Zayre Corp., sold the stores to the competing Ames Department Stores, Inc. chain, and in June 1989, Zayre Corp. merged with one of its subsidiaries, The TJX Companies, parent company of T.J. Maxx.  A number of stores retained the Zayre name until 1990, by which time all stores were either closed or converted into Ames stores.  (The TJX Companies, which also owns Marshalls, HomeGoods, and Sierra Trading Post, is still in operation as of 2017.)

Charlie the Tuna: Charlie the Tuna is the cartoon mascot and spokes-tuna for the StarKist brand.  He was created in 1961 by Tom Rogers of the Leo Burnett Agency after StarKist hired Leo Burnett in 1958.  StarKist Tuna is the name of a brand of tuna currently owned by Dongwon Industries, a South Korea-based conglomerate.  StarKist itself is based in Pittsburgh, the home of its former parent company, H. J. Heinz Company, sharing its headquarters on the site of Three Rivers Stadium with another former parent company, Del Monte Foods' Pittsburgh headquarters.

CSBP: CSBP Limited is an Australian fertiliser and chemical company based in Kwinana, Western Australia.  It is a subsidiary of WesCEF, which in turn is part of the industrials division of the Wesfarmers conglomerate.

HNA Infrastructure Investment Group: Hainan HNA Infrastructure Investment Group Co., Ltd. formerly Hainan Island Construction Co., Ltd. is a Chinese listed company based in Haikou.  in mid-2016 the company acquired HNA Infrastructure Group () in a reverse IPO from intermediate parent company HNA Infrastructure Holding Group (), which HNA Infrastructure Group is the parent company of HNA Real Estate and HNA Airport Group (, in turn HNA Airport Group is the parent company of HNA Airport Holdings (Group) () and HNA Airport Holdings is the parent company of Sanya Phoenix International Airport Co., Ltd.); HNA Airport Group is the largest shareholder of Haikou Meilan International Airport (19.58% as at October 2016), which in turn the largest shareholder of Hong Kong listed company HNA Infrastructure.  In December 2016 a proposed capital increase of the HK-listed company was announced.  HNA Infrastructure Investment Group would purchase a minority share directly.  Haikou Meilan International Airport was the second-largest shareholder of Hainan Airlines; Hainan Airlines, however, also owned a minority stake in Haikou Meilan International Airport.

Supporting paragraphs: CSBP Wesfarmers
Answer: Perth