Ladies and gentlemen, thank you for standing by. And welcome to Aurora Mobile First Quarter 2024 Earnings Conference Call. At this time, all lines are in a listen-only mode. After the speakers presentation, there will be a question-and-answer session. [Operator Instructions] Please be advised that today's conference is being recorded. I'd now like to hand the conference over to your host today, Rene Vanguestaine. Thank you. Please go ahead, sir.

Thank you, Amber. Hello, everyone and thank you for joining us today. Aurora Mobile's earnings release was distributed earlier today and is available on the IR website at ir.jiguang.cn. On the call today are Mr. Shan-Nen Bong, Chief Financial Officer; and Mr. Guangyan Chen, General Manager. Following their prepared remarks, they will be available to answer your questions during the Q&A session that follows. Before we begin, I'd like to remind you that this conference call contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934 as amended and as defined in the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements are based upon management's current expectations and current market and operating conditions which are difficult to predict and may cause the company's actual results, performance or achievements to differ materially from those in the forward-looking statements. Further information regarding these and other risks, uncertainties and/or factors are included in the company's filings with the U.S. Securities and Exchange Commission. The company does not undertake any obligation to update any forward-looking statement as a result of new information, future events or otherwise, except as required under applicable law. With that, I will turn the conference over to Mr. Bong. Please go ahead.

Thanks, Rene. Greetings to all. Welcome to Aurora's Mobile 2024 first quarter earnings call. And for our callers that listen here today, I'd like to know that our CEO, Chris is on business trip. Thus he is not able to attend the call today. And today, in Chris absence, I shall have the privilege to share with you all on the great quarter we have. Before I comment on our Q1 results, I would like to remind everyone that -- the quarterly earnings deck is available on our website. You may refer to the deck as we proceed with the call today. Similar to the prior quarter on what Chris has done, based on the Q1 numbers, I shall give an appropriate description for the performance of this quarter and it will be a great start to 2024. And the reasons are as follows: firstly, as far as managing the business win, I think we have done a great job. In this quarter, we have recorded a third consecutive quarter of positive adjusted EBITDA. Secondly, developer subscription revenue recorded a 13% revenue growth year-over-year, showing great growth momentum over the years. Thirdly, our gross margin grew both year-over-year and quarter-over-quarter. Fourthly, we are continuing to operate at a low level of OpEx, leveraging on our operational efficiency improvement over the filing [ph]. Our OpEx in this quarter is at historic low since our IPO. Last but not least, our star overseas product, EngageLab recorded excellent customer number and contract value growth this quarter again. I believe all of you would agree that we have a great Q1 for 2024. We are truly looking forward to building up the momentum for the next few quarters with even more exciting numbers. Next, let me share with you more. For total group revenue,…

[Operator Instructions] Our first question comes from the line of Calvin Wong from Spica Capital.

And congratulations again for another quarter of great results. I would like to have two, if I may. Firstly, as we understand, Q1 is a relatively quiet quarter but you still managed to deliver another quarter of positive adjusted EBITDA. So I would like to hear from the management how this was possible. And are we now expecting another positive adjusted EBITDA in Q2, that's my first question. And second question is, I would like to circle back on the EngageLab business again. Based on the Q1 deck, you have upload in the earlier management call EngageLab had another great growth quarter. I would appreciate if management could shed more lights on this business segment. So again, two questions. One, on the adjusted EBITDA outlook and, two about the outlook of the EngageLab business.

Sure, Calvin, let me recap. One is the question on the adjusted EBITDA number and second is the EngageLab. Yes, I think I -- honestly, we are truly happy that we have done a great job to deliver another quarter of adjusted EBITDA positive numbers in Q1. As you rightly mentioned, the Q1 is typically a slow quarter because of the Chinese New Year, along with the February shorter month. Of course, this Q1 positive adjusted EBITDA number did not come easy. As I just mentioned earlier, we have made a lot of adjustments. We made tweaks large or small, try to be nimble, try to be adjourn, try to be fast enough to react to the market over the past 2 years. I believe right now, we are in a very good position with the right product and that we do with great potential and especially our overseas expansion being executed according to what we have set out to do and with the low level of operating expenses. And I guess, let me just recap what we have done with the things that we have done, we have recorded the subscription revenue grew that grew 13% and our EngageLab business has grown -- the revenue has grown 10x year-over-year and we recorded the highest gross margin that grew year-end quarter-over-quarter and our operating assets were record low since IPO. And most importantly, a lot of investors and shareholders are looking for this 3 consecutive quarters of positive adjusted EBITDA. I guess one may conclude that things are falling into the right places, where they belong. And as well question on whether we are expecting another quarter of positive adjusted EBITDA number, I think we shall not get ahead of ourselves. I think what we need to do is the…

Very clear. Thanks.

Thank you, Calvin. [Operator Instructions] I'm showing no further questions. I'll now turn the conference back to Rene for closing commence. Rene, you may wish to do the closing comments?

Thank you everyone for joining our call tonight. If you have any further questions and comments, please don't hesitate to reach out to the IR team. This concludes the call. Have a good night. Thank you, all.

That concludes today's conference call. Thank you for participating. You may now disconnect.