Xinyue Geffner
Analyst · Lizard Investors
Thank you, Selina. We delivered another solid quarter of operating and financial results.
Moving on to Slide 12. We now have a total of 2,434 hotels with 200,000 -- 201,275 rooms. On a year-over-year basis, we increased our hotel numbers by 19.6%. During the quarter, we opened 104 new hotels, 68 in the mid-scale segment, 5 in the business to mid-to-up-scale segment and 31 in the economy segment. Of this, we opened 7 hotels in Tier 1 cities, 22 in Tier 2 cities and the remaining 75 in other cities in China. In Q2 2017, we opened 97 hotels, while for full year 2017, we opened 425. Therefore, you could see that we accelerated our hotel openings in Q2 2018 as well as first half of 2018.
During the quarter, we only closed 24 hotels. So net-net, we added 80 hotels to our portfolio. We closed 16 hotels due to their noncompliance with our brand and operating standards. We continue to demonstrate our ability to run profitable hotels. We also closed 8 hotels due to property-related issues, including rezoning, returning of the government-owned properties and expiry of leases, et cetera.
On Slide 13, you can see some of our key operating metrics. During the quarter, we continued to see improvements in our operating performance across the board. The key numbers focused here are the orange bars representing the performance of our F&M hotels. These hotels make up the biggest part of our business. The performance of our L&O hotels skewed a bit higher because we converted 5 L&O hotels to the F&M model after the first quarter of 2017. And we opened our high-end GreenTree Eastern hotel in Shanghai in June 2017.
In terms of our F&M hotels, our ADRs improved to RMB 163 from 100 -- I'm sorry, from RMB 155 in the second quarter of last year. RevPAR increased to RMB 135 from RMB 129, while the occupancy rate for F&M hotels had a slight decrease of 0.6% to 82.9%, which was due to the acceleration of new hotel openings in the quarter.
On Slide 14, you can see that total revenues grew 20.3% year-over-year to reach RMB 233.4 million. The year-over-year increase was primarily attributable to 4 factors: First, the increase of F&M hotels in our network; second, the opening of a GreenTree Eastern L&O hotel in Shanghai in mid-2017; third, improved RevPAR for both F&M and L&O hotels; and four, growth in our loyal memberships. This was partially offset by the conversion of 5 L&O hotels to F&M model after the first quarter of 2017. Total revenues from F&M hotels for the second quarter rose 23.3% to RMB 165.5 million. Meanwhile, revenue from L&O hotels rose 5.7% to RMB 49.7 million, which again shows the impact of the converted hotels. And finally, revenue from membership fees came in at RMB 18.1 million, a 43.5% year-over-year increase.
On Slide 15. During the first half of 2018, total revenues rose by 21.7% to RMB 438.3 million. Total revenues from F&M hotels for the first half of 2018 were RMB 309.4 million, grew by 25.5% year-over-year. Total revenues from L&O hotels in the same period were RMB 93.9 million, increased by 5.7% year-over-year. Membership fees totaled RMB 35 million, a 40.6% year-over-year increase.
Moving over to the expense side of the P&L. On Slides 16 and 17, you will get a sense of our operating efficiencies. Please look at the 3 graphs on the right-hand side of Slide 16. Hotel operating costs for the second quarter of 2018 were RMB 55.6 million. The year-over-year increase of 13.7% was mainly attributable to 3 factors: First, the increased number of general managers in our hotel network; second, other costs associated with the expansion of F&M hotels; third, higher rental costs for the GreenTree Eastern L&O hotel and other L&O hotels. This was partially offset by reduced rental cost, depreciation and amortization, and operating costs related to the conversion of the 5 L&O hotels.
Selling and marketing expenses for the second quarter of 2018 were RMB 11.6 million. The year-over-year increase of 22.9% in the second quarter of 2018 was mainly attributable to model room construction, exhibition and other advertising and promotion expenses related to our 3 new business to mid-to-up-scale brands, increased personnel, compensation and other costs, i.e. travel expenses of business development personnel, as a result of the increased opening of hotels.
General and administrative expenses for the second quarter of 2018 were RMB 25.2 million. The year-over-year increase of 38.6% in the second quarter of 2018 was primarily attributable to increased headquarters staff costs, increased share-based compensation expenses and new IT program expenses. Overall, other total operating costs and expenses grew 19.6% year-over-year to RMB 102.4 million. They grew more slowly than revenues in the second quarter of 2018.
On Slide 17, total operating costs and expenses grew 16.2% year-over-year to RMB 199.4 million in the first half of 2018.
As a result, as Slide 18 shows, we have been able to further improve margins. During the second quarter of 2018, gross margin grew by 1.7% to 71.9%. Adjusted EBITDA margin grew by 0.4% to 59.6%. And core net profit margin grew by 1.6% to 47.5%. Overall, gross profit grew 23.1% year-over-year to RMB 167.7 million.
Adjusted EBITDA increased 21.2% year-over-year to RMB 139.2 million. And core net income increased 24.7% to RMB 110.9 million. Basic and diluted core net income per ADS non-GAAP came in at RMB 1.09, equivalent to USD 0.16 in the second quarter of 2018 versus RMB 0.97 in the same period a year ago.
On Slide 19, we show consistent growth and healthy margins during the first half of 2018.
Moving on to Slide 20. Our IPO has bolstered our balance sheet further, which was already strong given our ability to consistently generate strong cash flow from operations. During the first half of 2018, operating cash inflow was RMB 199.4 million, cash and equivalents balance increased to almost RMB 1.9 billion. This provides us more resources to consider and evaluate additional capital investments and potential acquisitions.
Lastly, in terms of guidance, we reaffirm a 20% to 25% year-over-year growth in total revenues for the full year 2018.
This concludes our prepared remarks.