Tongbo Liu
Analyst · CVC Capital
Thank you, Yingying, and hello, everyone. And welcome to Sunlands' Quarter 2, 2018 Earnings Call. I am pleased to share that in the second quarter, we achieved a healthy revenue growth. Our net revenues increased by 134%, mainly driven by the growth in new student enrollments as students continued to realize the effectiveness of our mobile and online tutoring offerings.
As we noted last quarter, Sunlands' teaching philosophy is centered around helping students to learn as efficiently as possible. And our highly scalable one-to-many streaming model allows us to continually invest in developing better technology and content that improves learning efficiency.
Before Steven takes you through the financials, I will share some of the progress we have made in our content and courses, technologies and services as well as in our sales and marketing activities, and how these initiatives have improved outcomes for both our students and the company.
Over the past year, we have invested significant resources in improving the depth and quality of our content. This can be seen in the number of knowledge points that we teach our students, which have increased from 123,000 at the beginning of the year to more than 275,000 today. By more than doubling knowledge points, we are offering students access to more content that is designed to help them improve their understanding of topics and increase pass rates.
Leveraging cutting-edge technology is another core part of our strategy. And in early 2018, we introduced the personalized AI-driven study programs to accelerate the learning process and improve student test outcomes. The AI software, which was developed in-house, uses machine learning and natural language processing technology to analyze student behavior and their understanding of specific courses. Based on this analysis, Sunlands' AI software is able to provide tailor-made learning solutions that are designed to improve study outcomes effectively and efficiently. These initiatives have contributed to a significant increase in the user stickiness of Sunlands' platform over the past year.
In the second quarter of 2018, our students spent an average of 25.6 hours in live-streaming classes compared to 20.7 hours in the second quarter of 2017. Moreover, students took an average of 1,207 quiz questions in the second quarter of 2018, compared to only 336 in the same period a year ago.
Our efforts have also translated into significant improvements in learning outcomes for our students. For example, in the first half of this year, the number of subjects per Sunlands student passed at average in the Chinese National STE exams was more than double that of subjects per Sunlands students passed at average in the same period last year.
Looking at the front end of our business, during the quarter, we improved our sales and marketing approach to enhance the experience of prospective users and improve brand positioning. This includes taking a less assertive approach to sales and promotions, and making it easier for people to learn about our platform. While it will take some time to realize the benefits of these initiatives, we are confident that they will translate into a better experience and more sustainable growth over the long term.
While the STE market offers great potential in China, there is still a need to educate potential users and offer them a chance to see how it works so they can fully understand the power of our teaching platform.
In second quarter, we introduced free trial classes to not only improve sales and marketing activities, but to further wake up the STE market. These trial classes provide the potential students with the opportunity to experience Sunlands' unique offering first-hand before they commit to using our service.
While the sample size of students for the free trials is relatively small at the moment, the initial results have exceeded our expectations. Participants in free trial classes are significantly more likely to become Sunlands students and enroll in courses with higher price points.
Based on data collected from May to July 2018, the average revenue per student who used a free trial was more than 15% higher than those who signed up without a trial class.
The new initiative also increased the efficiency and effectiveness of our sales efforts. The sales conversion rate for free trial participants was more than double the conversion rate for normal sales channels. And on average, it took our sales team half the time to encourage the free trial participants to sign up to our courses compared to students, who did not participate in the free trial.
In addition, the refund rate of those that attended free trial classes was less than half our normal refund rate. We will continue to expand the scope of our free trial program to see if these results can be replicated on a larger scale.
Looking ahead, we will continue to invest in our content, teaching quality and technology platform to cement our leading position in China's online postsecondary and a professional education market.
As I mentioned in the first quarter, we are focused on doing this in 3 ways: first, we believe that there are huge untapped opportunities in the higher education space, and as the leader, we will continue to drive demand and wake up the market. The limited capacity in the traditional higher education sector means that there is a significant opportunity for Sunlands to expand our reach.
We will continue to offer our free trials to a larger group of potential users, introduce them to our capabilities and allow them to experience first-hand the power of our educational platform.
We are also excited that our online platform has the capability to reach even more students across the country even if they only have their mobile phones. By enabling students to gain bachelor quality educations, we are also helping to stimulate economic growth and prosperity in regional China.
Second, we will continue to invest in and improve the quality of our courses and content. We are encouraged by the positive response of the launch of our new AI-powered study programs, and we'll continue to build our analytical tools to provide even more useful and personalized solutions.
In the second half of 2018, we will also introduce new course packages and incrementally adjust pricing to better reflect the value we deliver to our students.
And third, we will keep investing in our IT platform, which is the backbone of our business. As we grow and add more solutions to address student needs, we need to make sure we have the IT resources to support. We are on track to double the number of IT employees to around 1,200 by the end of this year. We are also working with a number of leading Chinese tech companies to build our Cloud service to improve the quality of our service, including data collection and analysis.
Sunlands remains the leading player in China's online postsecondary and professional education market. By staying focused, we are confident that our investment in our technology and platforms as well as our focus on the customer experience will continue to translate into more sustainable growth over the long term.
With that, I will hand over the call to our CFO, Steven, and he will go through the financials.