Qualcomm Snapdragon 820 processor. On 3 March 2016, Xiaomi launched the Redmi Note 3 Pro in India, the first smartphone to powered by a Qualcomm Snapdragon 650 processor. On 10 May 2016, Xiaomi launched the Mi Max, powered by the Qualcomm Snapdragon 650/652 processor. In June 2016, the company acquired patents from Microsoft. In September 2016, Xiaomi launched sales in the European Union through a partnership with ABC Data. Also in September 2016, the Xiaomi Mi Robot vacuum was released by Roborock. On 26 October 2016, Xiaomi launched the Mi Mix, powered by the Qualcomm Snapdragon 821 processor. On 22 March 2017, Xiaomi announced that it planned to set up a second manufacturing unit in India in partnership with contract manufacturer Foxconn. On 19 April 2017, Xiaomi launched the Mi6, powered by the Qualcomm Snapdragon 835 processor. In July 2017, the company entered into a patent licensing agreement with Nokia. On 5 September 2017, Xiaomi released Xiaomi Mi A1, the first Android One smartphone under the slogan: Created by Xiaomi, Powered by Google. Xiaomi stated started working with Google for the Mi A1 Android One smartphone earlier in 2017. An alternate version of the phone was also available with MIUI, the MI 5X. In 2017, Xiaomi opened Mi Stores in India, Pakistan and Bangladesh. The EU's first Mi Store was opened in Athens, Greece in October 2017. In Q3 2017, Xiaomi overtook Samsung to become the largest smartphone brand in India. Xiaomi sold 9.2 million units during the quarter. On 7 November 2017, Xiaomi commenced sales in Spain and Western Europe. 2018–present In April 2018, Xiaomi announced a smartphone gaming brand called Black Shark. It had 6GB of RAM coupled with Snapdragon 845 SoC, and was priced at $508, which was cheaper than its competitors. On 2 May 2018, Xiaomi announced the launch of Mi Music and Mi Video to offer "value-added internet services" in India. On 3 May 2018, Xiaomi announced a partnership with 3 to sell smartphones in the United Kingdom, Ireland, Austria, Denmark, and Sweden In May 2018, Xiaomi began selling smart home products in the United States through Amazon. In June 2018, Xiaomi became a public company via an initial public offering on the Hong Kong Stock Exchange, raising $4.72 billion. On 7 August 2018, Xiaomi announced that Holitech Technology Co. Ltd., Xiaomi's top supplier, would invest up to $200 million over the next three years