Google was slapped with a European Union antitrust penalty for the second time in just over a year — this time after being accused of leveraging its Android mobile phone software to thwart competition.

The European Commission ordered the company to pay about €4.3 billion ($5 billion) — adding to a €2.4 billion fine in June 2017 for unfairly favouring its own comparison-shopping service.

The EU is unlikely to stop here — a third probe is still underway, targeting advertising contracts that the EU says may be too restrictive.

Here’s a timeline of the US giant’s EU woes since 2010:

■ February 2010: Joaquin Almunia, who’d just begun his term as EU antitrust chief, tells Google he’s got complaints from UK shopping website Foundem, Microsoft Corp.’s Ciao unit and French search service eJustice as he takes over as the EU’s competition commissioner.

■ 30 November 2010: The European Commission announces an antitrust probe “into allegations that Google has abused a dominant position in online search." The EU says it suspected Google of lowering the ranking of competitors in vertical search results such as price-comparison services. It’s also concerned about restrictions in advertising contracts.

■ 3 January 2013: The US Federal Trade Commission closes its 20-month antitrust probe of Google’s search and advertising practices after the company pledges to change some practices.

■ 1 February 2013: Almunia announces Google submitted a full offer to settle the antitrust probe.

■ 9 April 2013: A group representing Microsoft, Expedia and Nokia Oyj files an antitrust complaint against Google over its Android operating system. The group says the EU should investigate Google’s “deceptive conduct to lockout competition" in the mobile market.

■ 5 February 2014: Almunia says that Google made a settlement offer where it promises to show rival results next to its own specialized search results.

■ 20 May 2014: German and French ministers write to Almunia to criticize his plan to settle the case.

■ 10 September 2014: Almunia says time has run out in his two-year-long quest to clinch a settlement

■ 1 November 2014: New EU Competition Commissioner, Margrethe Vestager, takes over. Within weeks, officials are again quizzing Google rivals.

■ 27 November 2014: European Parliament votes for Google to be broken up if the EU can’t resolve its antitrust investigation. The vote by lawmakers isn’t binding.

■ 15 April 2015: The EU ramps up its search case, sending Google a formal statement of objections for “systematically favouring its own comparison shopping product in its general search results pages." Vestager also opens a new probe into the Android operating system for mobile phones and tablets.

■ 13 November 2015: Yandex NV, building on a recent antitrust victory over Google in Russia, says it extended the legal battle to the EU as it seeks to force its US competitor to unbundle services such as search from mobile devices using Android.

■ 20 April 2016: The EU escalates the Android probe, accusing Google of striking restrictive contracts that prevent makers of tablets and phones from adding competing apps and web browsers. The company also pays phone makers and telecoms operators to only install its search app on phones, the commission said.

■ 14 July 2016: Google’s AdSense for Search becomes the third of the company’s services to get an EU statement of objections listing potential competition problems. At the same time, the EU bolsters its search case by sending a second set of objections on search.

■ 10 November 2016: Google says the Android case threatens its strategy of providing free software to phone manufacturers. The company earlier blasted the EU’s search case that “just doesn’t fit the reality of how most people shop online."

■ 27 April 2017: Google settles a Russian antitrust dispute over Android by agreeing to drop pre-installations of any competing search engines or apps. The deal paves the way for Russian search firm Yandex NV to be pre-installed on Android devices.

■ 27 June 2017: The EU fines Google a record-breaking 2.4 billion euros for unfairly discriminating against rival comparison-shopping services. Google is ordered to “stop its illegal conduct" and find a way to give equal treatment to competitors within 90 days or it will get more fines for failing to comply.

■ 11 September 2017: Google files its legal appeal.

■ 27 September 2017: Google changes how it shows shopping search results in Europe to avoid the threat of EU fines. It says it will let rivals bid for ad spots on top of search results and the Google Shopping unit must make bids without financial help from the parent firm.

■ 7 November 2017: Google is “actively inviting" daily fines of about $12 million, says Foundem, alleging that it hasn’t met the terms of the EU demand to give rivals equal treatment

■ 22 May 2018: Yelp files a new antitrust complaint on Google’s behavior in local search

■ 18 June 2018: Vestager says Google seems to be showing more ads from rivals. She says it’s too soon to judge if the company has done enough to avoid more fines.

■ 18 July 2018: Google is fined 4.3 billion euros over Android app practices the EU says are illegal. The company is given 90 days to make changes or face further fines