Ashurst (Sydney)

John McKellar

Ashurst (Sydney)
Senior Associate

John McKellar is a senior associate in the competition practice John specialises in advising corporate and private equity clients on competition law. He has managed many transactions requiring clearance from the Australian Competition and Consumer Commission and other international competition agencies, and has coordinated multi-jurisdictional merger filings across Europe, Asia and the Americas. He has successfully obtained clearances in complex and contentious matters, including those involving detailed Phase 2 investigations and court action. In addition to merger control, John regularly advises clients on cartel and antitrust risk relating to commercial arrangements and represents clients in investigations brought by competition and sector regulators. John is also experienced in defending clients in disputes and litigation involving competition allegations, including allegations of abuse of market power. John also advises consumer-facing corporations on the application of the Australian Consumer Law. John’s clients span a range of sectors including technology, private equity, agriculture, retail, pharmaceuticals, healthcare, energy, entertainment, hotels, consumables, finance, aviation and construction materials.

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431 Bulletin

Alyssa Phillips, Peter Armitage, John McKellar, Zoe Huang The Australian Competition Authority provides important new details on the proposed shake-up of Australia’s merger control laws


The ACCC continues to push for Australia to join the ’mandatory and suspensory’ merger control club, in common with the majority of other jurisdictions around the world What you need to know On 12 April 2023, the ACCC Chair, Gina Cass-Gottlieb, provided important new details about the ACCC’s (...)

Tihana Zuk, John McKellar The Australian Competition Authority fines and convicts a former general manager of a national steel-producing company for obstructing a cartel investigation (BlueScope Steel)


In December 2020, Jason Ellis, a former general manager of sales and marketing at BlueScope Steel Limited ("BlueScope"), was sentenced to eight months’ imprisonment (suspended) and ordered to pay a A$10,000 fine, for inciting the obstruction of an investigation by the Australian Competition and (...)

John McKellar, Peter Armitage, Ross Zaurrini, Alyssa Phillips The Australian Federal Court dismisses the Competition Authority allegation against a healthcare company misusing its market power by engaging in anticompetitive conduct to prevent a group of surgeons from opening a rival day surgery (Ramsay)


What you need to know In a rare Federal Court proceeding involving alleged misuse of market power, the Federal Court held that the Australian Competition and Consumer Commission (ACCC) failed to establish that Ramsay Health Care (Ramsay) had in fact engaged in the anti-competitive conduct (...)

Melissa Fraser, John McKellar, Peter Armitage, Ross Zaurrini The Australian Competition Authority finds concerted practices between two roofing companies who fixed prices rates for the repair of homes damaged by hail (ANZ Roofing / Ivy Contractors)


What you need to know The Australian Competition and Consumer Commission (ACCC) has achieved its first enforcement outcome for alleged anticompetitive concerted practices since the prohibition was introduced in November 2017. Two Sydney roofing companies acknowledged in Court-enforceable (...)

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