2007: Formation and controversies In October 2007, SM Entertainment announced that a new Super Junior subgroup would debut in China in 2008. Super Junior's original member
Han Geng, and a new member
Henry Lau, who performed the violin solo of Super Junior's "
Don't Don", were announced to be the first two of seven members representing the subgroup. Some of Super Junior's official fanclub, E.L.F, signed online petitions and held protests to express their dissatisfaction and opposition of adding a fourteenth member to the group, fearing that a new member would mean one of the original lineup would get 'replaced'. Many fans boycotted Super Junior's products and held silent protests in front of SM Entertainment's main building in
Seoul, holding signs of the "Only 13" slogan. Over one thousand fans appeared in front of the SM Entertainment building on E.L.F's third protest on November 3, 2007. Instead of a silent protest, the fans sang various Super Junior songs and shouted "thirteen." Fans purchased 58,206 stocks of SM Entertainment, holding 0.3% of the company's entire stock. They released a statement through the media, stating that they would obtain all chances to prevent SM Entertainment from adding new members and to keep Super Junior as only thirteen. On April 5,
Siwon and
Donghae were revealed to be the second and third members. On April 6,
Kyuhyun was announced to be the fourth Super Junior-M member, following the new member, Henry, as the fifth.
Ryeowook and another new member,
Zhou Mi, were announced to be the final two members on April 7. A trailer of all seven members was released on the group's debut day, April 8. Super Junior-M's trailer clips exceeded 1.4 million views in less than four days. Super Junior-M debuted in
Beijing on April 8, 2008, at the 8th Annual Music Chart Awards, simultaneously with the release of their first music video, "
U" on
Sohu.com. Though a majority of the tracks in the album were Mandarin remakes of Super Junior's previous Korean hits, reviews were generally positive. Hong Kong
Cantopop singer,
Hins Cheung, critiqued the album favorably, saying that the album contains "international-level music" and that the group is "vocally-talented". A month after their debut, Super Junior-M won their first award, Asia's Most Popular New Group, at the 5th annual Music King Awards in
Macau on May 25. They took home another three awards that year. On December 27 and 28, Super Junior-M held their first concert, the Super Junior-M Show, in
Hong Kong. Following their debut performance in April 2008, the group made a few successful guest appearances in many chains of entertainment variety shows to promote their album. They appeared in an episode of the second season of
TVB and
HunanTV's collaboration show,
Strictly Come Dancing, which made the show's ratings increase to 5.01%, ranking it the third most watched show ever in all of China. Super Junior-M's appearance in the talk show
Behind Story () also increased ratings. The show had the highest ratings during their time slot, with a strong 4.05%. Separated into several weekly episodes, the group's appearance in their first episode on the challenging game show
Bravely Going Forward () in early August gave the show the highest ratings during that time slot as well. In August 2008, Han was cast in the idol television drama
Stage of Youth, a mini-drama dedicated to the
2008 Beijing Olympics. Han portrayed Xia Lei, a youth who aspires to be a famous dancer. Other members of Super Junior-M gave
cameo appearances in the final episode. In September 2009, Super Junior-M released their mini album, the
EP Super Girl. The album garnered them a nomination for Best Vocal Group at the
21st Golden Melody Awards. The EP's title single "
Super Girl" is Super Junior-M's most critically successful song to date, winning numerous accolades for its composition and performances.
2010–2011: Lawsuit, lineup changes and Perfection In December 2009, Hangeng filed for contract termination from
SM Entertainment, claiming that the provisions of his contract were unlawful, harsh, and against his rights. Super Junior-M immediately canceled all of their future activities and performances in China and Taiwan. They returned to Korea to begin preparing for Super Junior's
fourth studio album. Han, however, stayed in China and signed under a new management, releasing his debut solo album
Geng Xin in July 2010. Although Super Junior-M remained largely inactive for most of 2010, they won several accolades for their song "
Super Girl" at China's 2010 MusicRadio TOP Awards, including Most Popular Group, Golden Melody Award (Top 15), and Best Composition. In December 2010, the Seoul Central District Court ruled in favor of Han. However, SM Entertainment announced that they will file an immediate appeal to reverse the decision. In September 2011, Han and SM Entertainment officially came to a mutual agreement regarding Han's contract, closing the case. In February 2011, Super Junior-M resumed their activities with two new members from the main group,
Eunhyuk and
Sungmin, with the release of EP
Perfection. It debuted at number 2 on Taiwan's G-music chart, and stayed on the chart for four weeks. The repackaged version of the album was released on April 29, debuted at number 2, and stayed on the chart for 10 weeks. Later that, SM confirmed the group plans to release a new album. On January 7, 2013, Super Junior-M released their second album,
Break Down, along with the lead single of the same name. A press conference took place in Beijing on January 7 and started promotions the album in China. They promoted the album in South Korean mutizens for a week as well different Fan Meetings in Asia. The song debuted No.1 on the Billboard charts. After one year and three months, Super Junior-M announced to release their third EP
Swing in China on March 21. To commemorate the release of their third EP, Super Junior-M held comeback press conference held at the Dine Theater located in the CBD (Central Business District) in Beijing on March 22, with the live broadcast views by 1.07 million users. The sub-unit also plans to made their comeback stage on China's CCTV music program in the same day. On March 29, they won the first place on China's CCTV music program. Next day, they made their comeback stage in Korea on SBS's
Inkigayo. Their third EP officially released in Korea on March 31, which contains seven-track including the Korean version of "Swing". In July 2015, Super Junior release their 10th anniversary album
Devil with Super Junior-M also participation to recording new song ""
(Forever with You) for the album. On March 31, 2018, Super Junior-M's parent group Super Junior held its seventh world tour
Super Show 7 in Taipei. Member Donghae mentioned that Super Junior-M plans to release new album after all members return to the team in 2019, but never came to fruition following the fandom's boycott on Sungmin. On April 30, 2018, Henry decided not to renew his contract with
SM and left Super Junior-M. ==Members==