Thank you, Christian, and thanks everyone for joining us on our third quarter results discussion. We just released our third quarter results. Our last 12 months GMV grew 386% year-over-year to RMB344.8 billion. This was fueled by the growth in our annual active buyers, which more than doubled, and further compounded by doubling in the annual spent per active buyer. Over the last 12 months, we had 386 million users make at least one purchase on our platform, an increase of 42 million users over the prior quarter. During the third quarter, we had an average of 232 million MAUs, an increase of 37 million users over the prior quarter this year. Our revenue for the third quarter grew almost 7x over the same period in 2017 to RMB3.4 billion, primarily driven by the growth in our online marketing services, which we have only launched in April 2017. Though our monetization rate continued to improve, it was partially offset by the strategy we announced in last quarter after rewarding higher quality merchants with more traffic. We hope to create a virtuous cycle whereby high quality merchants who will provide a value for money products with good user experiences are rewarded attracting more high quality merchants to our platform. At Pinduoduo, user satisfaction is our ultimate goal. We have created a platform where users can discover value for money products in a fun, social and entertaining setting. By aggregating the demand for each SKU into larger volumes through our team purchase option, we enable our merchants to better manage their supply chain and lower their production and logistics costs. The savings can then be transferred to our users. Therefore, users often find products at a cheaper price they expected as compared to their perceived value of those products. We are very focused on improving efficiency and capabilities of our merchants so that we can serve our users better. Over the last 30 years, China has grown to become the largest manufacturing base for most consumer goods sold worldwide. However, it also has a complex distribution system. The average manufacturer lacks a good understanding of the consumers and doesn't have much visibility on the demand for their goods. As such, manufacturers may lose out on potential sales if their products are expectedly popular or they may end up having to discount deeply to move inventory if they overproduce. Our platform aims to let the manufacturers have a more direct pulse and the consumer demand. We hope that as our technology advances, our team purchase option put into only help aggregate demand quickly but also be able to assimilate the likely demand at a certain point in time, and then relay this information to manufacturers. By equipping merchants with the data analytics, they then have ample lead-time to make adjustments and prepare the products for shipping. Over time, based on our data, the merchants can also develop particular SKUs that are better suit to their target consumer taste and by cutting out the middleman manufacturers retain more profits, while our users get better quality and value for money products. Linking the users to manufacturers in this way reduces waste and will allow manufacturers to build strong original brands over the long run. This is important as we have also observed that younger consumers increasingly prefer more personalized offerings that are tailored to their need. The supply chain therefore has to evolve in order to cater to this demand for personalization. The next step in this evolution is the utilization of 5G, IoT and AI. As 5G rolls out at a scale and adoption grows, the industrial supply chain will also be transformed as data flows and information exchange happens on a much faster level. Whether it'd be a tree in orchids or a batch of raw materials in the factory, all of the information about different parts of the supply chain can be readily grasped. At the same time, as the vast amounts of information gets processed that it paves the way for innovative new technologies, one of the industries that it can be really transformed by this is agriculture. Most of the agricultural land in China has scattered through small-scale farming. Unlike farming in U.S., which is more standardized, Chinese farmers often lack basic information on market demand, which means they face uncertainties throughout the farming cycle. For example, what to plant, how much would sell and how much what it is sell for? Making matters worse is convoluted distribution structure between farmers and the consumers resulting in a spoilage and limited shelf time by the time the product to reach its consumers. Farmers operating under this traditional structure are often forced to harvest their produce prematurely or to build their produce in chemicals in order to prolong shelf time, consumers end up paying not only a higher price, but gather inferior product. Our solution today is to aggregate the demand of consumers through our team purchase option and a channel that is sizable demand to farmers. With more market intelligence and transparent commodity pricing, farmers can set their own price, compare their price with nationwide peers, and then work on how to market their products to users with a right price point and packaging. Thereafter, they can ship the product directly to the 384 million users on our platform. While the existing logistics infrastructure in China is not a well-suited before delivering fresh produce, there is at least a basic network that farmers can tap on to reach consumers. Consumers end up getting fresher and safer products for better price, while farmers schedule to make more money, which can be reinvested to improve their farming practices and a set of both their production for quantity and quality. This creates a win-win outcome, and it can have great impact on transforming agriculture and uplifting the poor, as an example, in [indiscernible] county in [indiscernible] which is mountain and its difficult to getting into. There is often excess inventory of their locally produced oranges. At times, farmers cannot even sell their oranges for $0.60 a kilogram, which is a shame as these are high quality oranges. Now, with on-boarding of their produce on our platform, the farmers can realize as stable selling price of RMB6 a kilogram. By year-end, the [indiscernible] county will cross the national poverty line. This is just one example out of the 730 impoverished counties we are working with. But it shows the real impact that technology can have and how we can do our part to uplift to the poor. Going forward, we will continue our efforts to aim farmers in impoverished countries. What we have achieved so far is just the first step and we look forward to contributing more. Next, I would like to take this opportunity to update you our effort to fight, compensate and infringing products on our platform. From the very beginning, we were the first platform in China to strictly hold all our merchants to the standard of our 10x penalty on counterfeit goods. After 50 odd brands, we were alleged to have counterfeit or infringing versions on our platform. We have thoroughly investigated over the past few months and found that plenty of these "fake brands" never existed on our platform. Of the other 30, we have finished our cleaning efforts and have worked tirelessly to close every loophole and tackle all issues. Additionally, we set up reach our public comps to clarify any residue buyer concerns. Since August, we have also upgraded our merchants' on-boarding system to integrate with the police identity verification system from the consumer end. We have refreshed our search algorithm to diploid the legitimacy brand name even we have user's key in infringing brands. By striking at a root and removing incentive for copyright infringement, we hope to weed out bad behaviors. We will continue to invest in our technical capabilities associated to keyword identification, filtering image, tax and video imaging recognition and developing a blacklisting mechanism. We are also creating a fast-track IP channel with the government to have merchants apply for their own trademarks and build their own brands. At the same time, we continue to collaborate closely with the authorities to uphold the rights of consumers. We are grateful for all the parties that have made us a better perform throughout this process, especially the government, which has been extremely supportive and understanding, the media, which has helped us uncover cases of abuse, and users who have trusted us and helped us with their candid reviews on our platform. All of the above wouldn't have been possible without our focus on technology. As we continue to grow in size and build out our offering to our users, we plan to invest more in our efforts in R&D and also upgrade our existing infrastructure to meet future demand. We continue to improve the accuracy of our product recommendations and add targeting by enhancing our distributed AI infrastructure. We are also in discussions with various institutions worldwide to partner our initiative to further our technical knowhow around distributed AI to help ourselves better understand our user behavior and to enhance user data privacy protection capabilities. I myself will be leading this effort and we hope to share our results with the public at a later stage. Finally, to end on a more lighthearted note, let's talk about Duo Duo Orchard, which I mentioned last quarter. Duo Duo Orchard is a game that rewards users for completing a variety of emissions daily as they try to grow virtual fruit trees. Once the user achieved bear fruit, we send an actual package of fruit to them as a reward. Participation on Duo Duo Orchard is so strong that we now send out over 500 tons of fruit daily from farmers in impoverished areas like southern Xinjiang. Duo Duo Orchard allows us to delight our users while doing good and encapsulates our company division of offering the users a differentiated and entertaining shopping experience with value for money products. Last month, we celebrated the third year anniversary of our app with our users, merchants and employees. We're grateful for all our ecosystem partners as well as all experienced investors worldwide who have supported us. We see ourselves as a very young company with much room for further improvement and we will dedicate ourselves relentlessly to meeting our users' needs and overcoming all obstacles along the way. With that, I will hand the call over to our VP of Finance Tian to walk through our financial results in the quarter. Tian, please.