Yes. Thank you, David. Welcome, everyone, to our first quarter 2019 conference call. Hopefully, you all had time to review our earnings release. The biggest takeaway from Q1 are: First, we keep our focus and achieved nice revenue, gross margin and operational profit improvement in Q1 2019 over Q1 2018. Q1 is normally the seasonal low. There are few working days around the Chinese New Year holidays. 2019 was not different. Second, we exit Q1 with March revenue up over 19% compared to February. This was up 11.2% over the year ago period. Third, we continue to build value for the company and shareholder. The latest action was we realized a nice return in April on our investment JMC Electronics, and we will have another dividend pending shareholder approval at our June AGM. Overall, we are pleased with our execution, strong financials and demand profile. We will work to delivering improving results through 2019 as we support our customers. In terms of adding color on Q1, the overall capacity utilization rate level was about 70%. There were 2 driver which lowered revenue compared to the Q4 and the absorption of adding capacity in supporting of growth in DDIC. In the memory segment, including DRAM and Flash, revenue declined about 15% to 16% compared to the fourth quarter of 2018. This is in line with the recent trend as the inventory memory is absorbed. In terms of further line, DRAM product represent about 17% of total Q1 revenue while Flash product represent about 18%. We are ramping new customer program and expect this will benefit results. As for driver-related product, revenue was about 6% to 7% lower than the fourth quarter of 2018. Growth in this area was marked by the reduced Q1 working days and low period. Trend-wise, we continue to benefit from TDDI demand in supporting of new smartphone model with bezel-less panel. In Q1, DDIC represent about 35% of the revenue, which is up over the revenue percentage of Q4 2018. Gold bump revenue increased and represent about 19% of the total Q1 revenue. The combined gold bumping and DDIC revenue represent about 54% of total Q1 revenue. Meanwhile, TDDI revenue rose to about 28% to 29% of DDIC revenue in Q1. We are encouraged by further growth in COF demand. In Q1, around 27% of TDDI product adopt COF packaging, which is up from 21% in Q4 2018. We also benefit from COF demand for the TV driver ICs with stability from the higher penetration rate of 4K TVs with near fully capacity utilization. Revenue for our COF product in Q1 was flat with Q4 2018 even with the fewer working days in Q1. As a result, COF revenue represent about 65% of total Q1 revenue, up to 60% in Q4. As we look forward into second quarter of 2019, we are encouraged by our market position, financial health, customer outlook and market mix. We are confident as we benefit from strong demand in our TDDI business, particularly with COF. We expect further growth in DDIC revenue and adding capacity for wafer test and 12 inch COF assembly. This will come online later in Q2. We expect COF packaging demand of TDDI will remain strong with TDDI packaging by COF to steady growth as new current COF assembly capacity come online. Our DDIC customer are seeking long-term agreement to secure the needed capacity support for their expected growth. This adds further visibility and stability to our business and derisk our investment. In memory. Product demand has been soft with the inventory adjustment and normal seasonality. We are encouraged by cooperation project with a new customer that are coming online. We expect those project will contribute to memory revenue and stability and growth and will help improve the assembly utilization rate level. With having confidence in your outlook and healthy financial position, our Board approved another dividend pending shareholder approval at our June AGM. We will distribute TWD 1.2 per common shares or about $0.78 per ADS. This is the latest [indiscernible] as we give value and reward shareholders. Our consistent return on capital benefit for shareholders and underscore the strength of our balance sheet and ongoing cash flow generation. Finally, before I turn the call to Silvia, I would like to report to you that ChipMOS completed the sale of 9.1 million common shares of JMC just after Q1 ended. This disposal gain was around $31.8 million after the deduction of related tax and expenses. ChipMOS continues to own 10 million common share of JMC representing 10% of total share outstanding while we remain confident in JMC's long-term business prospective. We are pleased to have realized this return on our strategic investment. The proceed will be used to further strengthen our company's financial structure while increasing our balance of working capital and decreasing the debt ratio. This is in line with our strategy of balanced approach of near-term customer growth and capacity demand, which ensuring the long-term success and financial health of the company. Now let me turn the call over to Ms. Silvia Su to review the first quarter financial results. Silvia, please go ahead.