More than anything, YES is the spirit of enterprise and enthusiasm that powers Hong Kong. Whatever your ambitions and however you define success, we empower you to connect with the things that will help you make YES happen.
Launched in 1993, 1O1O is the highly regarded premium brand of CSL Mobile Limited. Known for its award-winning customer services^, 1O1O also draws on CSL’s network superiority to provide Hong Kong’s professionals and discerning customers with a premium mobile lifestyle service. In 2010, CSL became the first operator in the world to launch dual band 4G LTE with DC-HSPA+ mobile broadband network, and now offers world-class capacity and speed to 1O1O customers, complementing the premium value-added services that set the brand apart. 

^ 1O1O won "Service Retailer of the Year (Telecommunications)" at the Hong Kong Retail Management Association's "Mystery Shoppers Programme" from 2009-2012.
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