Hello, everyone. Thank you for participating in today's conference call. For the fourth quarter of 2022, ZTO delivered a total volume of 6.59 billion, which increased 3.9% year-over-year, extending our market share by 1.5 points. Our public satisfaction ranking continued to be among the top of the industry with steady improvement. Meanwhile, we achieved an adjusted net income of CNY2.12 billion, which increased to 21% over the fourth quarter of last year. In 2022, affected by the recurring pandemic, overall growth of express industry decelerated. Facing by challenges, ZTO focus internally and further solidified our industry-leading position with increased market share, improved service quality and profitability. In 2022, our parcel volume reached drove 24.39 billion, which expanded our market share by 1.5 points to 22.1%. At the same time, our adjusted net income grew 37.6% year-over-year to CNY6.81 billion. Our strong performances came from concerted efforts by everyone under the ZTO brand, including network partners and the carriers. Start with a clear set of strategic goals we implemented specific work priorities as following: Firstly, we strengthened and the standardized operational safety controls and removed or rectified potential safety hazards. During the pandemic period, we made best effort to ensure uninterrupted package flow of consumer necessities without compromising prevention efforts. Second, through the effective control quality and coordination of all 4 stages of pickup, quotation, transportation and delivery activity. We are able to improve our service quality and the public satisfaction, which in turn enhance the ZTO's brand recognition and the reputation. Third, we've raised the level of fairness and transparency of network policy, particularly with regards to KA customer operations by assessing the volume breakdown and the profitability in a couple of KA customers. We systematically eliminated and restored market competitiveness as well as earnings for partner . Fourth, with further integrated operations, finance and IT to improve data-driven process management previous reporting, which mainly presented results to headquarters was upgraded to analytics that provides insights to help identifying problems on a timely basis and solutions can quickly follow. In 2022, China's economy demonstrated resilience against multiple headwinds. ZTO also overcame various challenges and keep the both volume and size, which proves the effectiveness -- which proves the effectiveness of our strategy and added confidence for us to continue to focus on ourselves and improve operational excellence. Entering the first quarter of 2023, we saw signs of recovery in China's economy, where consumers' confidence have increased. The logistics industry has been regarded as a strategic and foundational of the national economy. As the pacesetter ZTO strives to lead us to the country's expectations to grow bigger and stronger. Under the priority of stability and sustainability, we will continue to execute our corporate strategy with the following initiatives: First, ensure a safety of pickup and delivery, sorting and transit data security throughout our business processes, continuously improve controls and measures to reduce accidents and avoid . Second, improve output of infrastructure investments, optimized capacity planning with a more scientific approach and coordinate investment planning to include our network partners' capabilities against the long-term need. Third, increase granularity and improve the accuracy of cost analysis in order to set price accordingly by line-haul routes. We use such digitized tools to improve effectiveness of labor resource planning with improved unit efficiencies, increased utilization of PP&E, including transit . Fourth, empower of our partner always in various aspects, such as setting parcel volume KPIs according to achievable market share growth to alleviate concerns of added weight year-after-year measured by growth rate. These rewards and recommend assessments with associated operational conduct so as to drive improvements. Analyze the shortcomings of [indiscernible] effective growth and provide support for targeted reforms. Provide as many practical tools as possible to better manage their day-to-day. Fifth, per month implementation of last-mile policies to fully incentivize the carriers in acquiring retail customers. With the high risk of pay level in the industry, our carriers will truly achieve entrepreneurship and better serve their customers. Sixth, accelerated last mile presence from [indiscernible] direct linkage and improve on-demand delivery capacity by post-operating. Explore opportunities of community service and not only reduce delivery cost but [indiscernible] last mile products and services. Seven, strengthen the core Express business and organized resources and competitive advantages of eco businesses. Rely on core competencies and refine diversified capabilities to perform coordinated and high-quality eco-capability metrics. We remain optimistic about the long-term growth prospects of China's Express delivery industry that the strong will become stronger is an apparent development trend and its desire to pursue profitability has become mainstream. Volume and market share have came through low price and bottom line losses are not sustainable. Only with robust network, efficient delivery capacity, high quality of service and excellent cost efficiencies in our business develop into a bigger and a stronger enterprise. Data-driven process management will help us continuously optimize precision in policy design. The effectiveness of process improvements and efficiencies in resource utilization. We have quickly improved our [indiscernible] measure what we have and target what we want to achieve in order to accomplish a balanced set of results in accordance with our overall corporate strategy. In 2023, we will accelerate the transformation from high quantity to higher quality by relying on our shared-success culture, best yet stable network, high operating capacity and strong cash flow we will unify our thinking, clearly lay out our goals, make full use of our resources, drive synergy, maintain safety achieved on both quantity and quality. Meanwhile, we will support our network partners and the carriers with fairness and protect their rights and interests help improve our network partners' capabilities and strengthen their confidence. We will keep growing our core business and expand the comprehensive logistics products and services to meet diverse consumer needs. As a corporate citizen, we will take on more social responsibilities and create greater social value. Next, let's welcome our CFO, Ms. Yan, to introduce the financial results and the status of ZTO.