They highly cater to the corporate benefits market: > Historically, our revenue has been concentrated among a small number of customers. In 2017, 2018 and the

They highly cater to the corporate benefits market: > Historically, our revenue has been concentrated among a small number of customers. In 2017, 2018 and the nine months ended September 30, 2019, our top customers accounted for 42%, 37% and 36% of our net revenue, respectively. These customers included Google Inc., which accounted for 10% of our net revenue for 2018 and the nine months ended September 30, 2019.