Greetings, and welcome to the ChipMOS Second Quarter 2024 Results Conference Call. At this time, all participants are in a listen-only mode. A question-and-answer session will follow the formal presentation. I would now like to turn the conference over to Dr. G.S.
Shen of ChipMOS TECHNOLOGIES' Strategy and Investor Relations team to introduce the management team of the company in conference. Dr. Shen, you may begin..
Thank you, operator. Welcome, everyone, to ChipMOS' second quarter 2024 results conference call. Joining us today from the company are Mr. S.J. Cheng, Chairman and President; and Ms. Silvia Su, Vice President of Finance and Accounting Management Center. We are also joined on the call today by Mr.
Jesse Huang, Spokesperson and Senior Vice President of Strategy and Investor Relations. S.J. will chair the meeting and review business highlights and provide color on the operating environment. After Silvia's review of the company's key financial results, S.J. will provide our current business outlook.
All company executives will then participate in an open Q&A session. Please note, we have posted a presentation on the MOPS and also on the ChipMOS website, www.chipmos.com, to accompany today's conference call.
Before we begin the prepared comments, we remind you to review our forward-looking statements disclaimer, which is noted as the Safe Harbor Notice on the second page of today's presentation and in the results press release we issued.
As a reminder, today's conference call is being recorded, and a replay will be made available later today on the company's website. At this time, I'd like to now turn the call over to our company's Chairman and President, Mr. S.J. Cheng. Please go ahead, sir..
Yes. Thank you, G.S. We appreciate everyone joining our call today. We are very pleased with our strong results and business execution in the face of headwinds from inventory adjustments across most end markets. We delivered strong revenue growth, profit expansion and drove free cash flow.
We continue to carefully add capacity, expand our leadership and build long-term value for shareholders through disciplined capital allocation and by focusing on the highest return opportunities. In terms of Q2 highlights, our Q2 revenue increased 7.2% compared to Q1 2024 and was up 6.7% on a year-over-year basis.
Q2 gross profit increased 5.8% compared to Q1 2024, while gross margin remained flat over the same period and decreased 330 basis points compared to Q2 2023. Net earnings increased to TWD0.62 in Q2 2024, up from TWD0.60 in Q1 2024 and accumulated first half of 2024 EPS is TWD1.22.
In terms of the details, our overall utilization rate improved to 69% in Q2 2024 from 63% in Q1 2024. This reflects a combination of an overall improvement in our business and loading levels and a seasonal uptick. Assembly utilization increased to 65% and average test utilization was 67%. DDIC was at 75% and Bumping UT level increased to 65%.
Regarding our manufacturing business, assembly represented 22.3% of Q2 revenue. Mixed-signal and memory testing represented 21.9% and wafer bumping represented 21.9% of Q2 revenue. On a product basis, our DDIC product represented 34.1% of total revenue in Q2, with gold bumping representing about 18.5%.
Revenue from DRAM and SRAM represented 14.5% of total Q2 revenue. Our mixed-signal products represented 10.2%. As additional color on our business, our memory products represented 37.2% of total Q2 revenue. Memory product revenue increased 2.4% compared to Q1 2024, and increased 17.6% on a year-over-year basis.
DRAM revenue decreased 5% compared to Q1 2024 and represented 13.9% of total Q2 revenue. Flash revenue represented about 22.7% of Q2 revenue, which was up 7.3% compared to Q1 2024. NOR flash also benefited significantly from customers rebuilding inventory levels and increased more than 30% compared to Q1 2024.
NAND flash represented 34.8% of Q2 total flash revenue and decreased 17.7% compared to Q1 2024. Moving on to driver IC and gold bump revenue. This represented about 52.6% of total Q2 revenue. This was up 11.3% compared to Q1 2024 and flat on a year-over-year basis. Of note, gold bump revenue was up 7.6% compared to Q1 2024.
We benefited from large panel rush orders and stable demand from auto panels. OLED growth helped drive DDIC revenue up 13.3% compared to Q1 2024 and large panel rush order helped COF significantly grow 32.5%. Auto panel contributed about 26% of our Q2 DDIC revenue. This growth tracks with our prior comments.
We continue to view automotive as an important mid and long-term growth market for us. Our track record of quality excellence and required qualifications gives us a competitive edge in serving auto customers.
Regarding TDDI, it represented around 17.8% of Q2 DDIC revenue with OLED at 23.8% of Q2 DDIC revenue and was up 13.6% compared to Q1 2024, driven by customers' restocking. On an end market basis, total revenue from automotive and industrial represented about 23.3% of Q2 revenue. This was up 14.7% compared to Q1 2024.
TV panel demand represented 18.7% of Q2 revenue, which was up 27.7% compared to Q1 2024. Smartphone-related demand represented 35.6% of Q2 revenue, which was flat with Q1 2024. Computing accounted for 3.6% of Q2 revenue and increased 15.3% compared to Q1 2024.
Lastly, consumer-related demand represented 18.8% of Q2 revenue and was flat compared to Q1 2024. Now let me turn the call to Ms. Silvia Su to review the second quarter 2024 financial results. Silvia, please go ahead..
Thank you, S.J. All dollar amounts cited in our presentation are in NT dollars. The following numbers are based on the exchange rates of TWD32.45 against $1 as of June 28, 2024. All the figures were prepared in accordance with Taiwan-International Financial Reporting Standards. Referencing presentation Page 12, consolidated operating results summary.
For the second quarter of 2024, total revenue was TWD5,810 million. Net profit attributable to the company was TWD451 million in Q2. Net earnings for the second quarter of 2024 were TWD0.62 per basic common share or $0.38 per basic ADS. EBITDA for Q2 was TWD1,558 million.
EBITDA was calculated by adding depreciation and amortization together with operating profit. Return on equity of Q2 was 7.2%. Referencing presentation Page 13, consolidated statements of comprehensive income compared to 1Q '24. Total 2Q '24 revenue increased 7.2% compared to 1Q '24.
2Q '24 gross profit was TWD815 million with gross margin at 14% compared to 14.2% in 1Q 24. This represents a decrease of 0.2 ppts, Our operating expenses in 2Q '24 were TWD460 million, or 7.9% of total revenue, which increased 7.1% compared to 1Q '24.
Operating profit for 2Q '24 was TWD374 million, with operating profit margin at 6.4%, which is about a 0.3 ppts decrease compared to 1Q '24. Net non-operating income in 2Q '24 were TWD128 million, which decreased TWD29 million compared to 1Q '24.
The difference is mainly due to the decrease of the foreign exchange gains of TWD128 million and partially offset by the increase of gain on disposal of non-current assets held for sale of TWD72 million and interest income of TWD17 million. Profit attributable to the company in 2Q '24 increased 2.9% compared to 1Q '24.
Basic weighted average outstanding shares were 727 million shares. Compared to 2Q '23, total revenue for 2Q '24 increased 6.7% compared to 2Q '23. Gross margin at 14% decreased 3.3 ppts compared to 2Q '23. Operating expenses increased 4.1% compared to 2Q '23. Operating profit margin at 6.4% decreased 3.2 ppts compared to 2Q '23.
Net non-operating income decreased TWD95 million compared to 2Q '23.
The difference is mainly due to the decrease of the foreign exchange gains of TWD124 million and share of profit of associates accounted for using equity method of TWD47 million and partially offset by the increase of gain on disposal of non-current assets held for sale of TWD72 million.
Profit attributable to the company decreased 28.3% compared to 2Q '23. The difference is mainly due to a decrease of operating profit of TWD148 million and net non-operating income of TWD95 million. This was partially offset by TWD64 million decrease in income tax expense.
Referencing presentation Page 14, consolidated statements of financial position and key indices. Total assets at the end of 2Q '24 were TWD45,435 million. Total liabilities at the end of 2Q '24 were TWD20,919 million. Total equity at the end of 2Q '24 was TWD24,516 million. Accounts receivable turnover days in 2Q '24 were 85 days.
Inventory turnover days was 49 days in 2Q '24. Referencing presentation Page 15, consolidated statements of cash flows. As of June 30, 2024, our balance of cash and cash equivalents was TWD14.652 billion. Net free cash inflow for the first half of 2024 was TWD1,433 million compared to TWD1,950 million for the same period in 2023.
The decrease was mainly due to TWD486 million CapEx increase and TWD42 million reduction in depreciation expenses. Free cash flow was calculated by adding depreciation, amortization, interest income together with operating profit and then subtracting CapEx, interest expense, income tax expense and dividend from the sum.
Referencing presentation Page 16, capital expenditures and depreciation. We invested TWD858 million in CapEx in Q2. The breakdown of CapEx in Q2 was 4.3% for bumping, 44.7% for LCD driver, 28.7% for assembly and 22.3% for testing. Depreciation expenses were TWD1,184 million in Q2.
As of July 31, 2024, the company's outstanding ADS number was approximately 4.2 million units, which represents around 11.6% of the company's outstanding common shares. That concludes the financial review. I will now turn the call back to our Chairman, Mr. S.J. Cheng, for our outlook. Please go ahead, sir..
Thank you, Silvia. Based on what we are hearing from customers and companies in the industry, we are cautiously optimistic entering Q3. The market has been going through a series of challenges with the latest being inventory destocking. Inventory levels have been getting back to normal but are not there yet in all markets.
We expect the broader market condition will continue to improve as we move through 2024 based on the broader market drivers and ChipMOS' specific growth drivers. We expect this will lead to a stronger second half of 2024 with improved operating momentum.
In our memory product, DRAM and flash products are maintaining stable momentum with improving end markets and end customer inventory levels. We are benefiting from customers restocking, which is driving higher momentum growth of NAND flash and Niche DRAM compared to other memory products.
In our DDIC product, automotive panel and OLED demand remained stable compared to other products. This is leading to a high UT level for our high-end DDIC test platforms, particularly automotive panel portion.
In addition, we are benefiting from customers restocking for new smartphone launches, which is increasing the related assembly and test UT level of COG. Therefore, we think DDIC will continue to outgrow memory product momentum in Q3.
With regard to CapEx, we currently plan to invest in our memory test platform in the second half of the year to meet demand supporting memory upgrade to DDR4 and DDR5 from DDR3.
Based on current customer forecasts and the increasing UT level, we acquired DDIC capacity to expand our DDIC high-end test capacity in short capacity expansion schedule for coming DDIC test capacity demand.
In addition, we plan to purchase an idle factory located in the Southern Taiwan Science Park to handle test capacity expansion of automotive panel and OLED in Tainan to strengthen our further business growth momentum. We continue to shift our product mix into higher-growth, higher-margin product areas.
We are making CapEx investments in support of growth in these areas. Our strategy is to use these higher-growth, higher-margin areas to reduce operating costs, improve profit and maintain business growth momentum and competition advantage. This is also in line with our continued cost reduction, quality improvement and operating strength actions.
Finally, as we remain focused on expanding our leadership position, we are equally focused on building value for shareholders. Our latest action was returning cash to shareholders in the form of our latest dividend distribution, TWD1.8 per common share on July 19. Operator, that concludes our formal remarks. We can now take questions..
Thank you. At this time, we will be conducting a question-and-answer session. Our first question comes from Anthony Liu from Yuanta. You may begin..
Why did gross margin go down as UT level increased in Q2?.
Thanks for your question. In 2Q '24, gross margin was impacted by higher costs compared to Q1 2024. Electricity charges increased more than TWD100 million with the higher normal summer rate, a general charge rate increase since April and UT increase compared to Q1 2024. Meanwhile, the higher price of gold led gold bump material cost increase.
Salary and overtime pay also increased with the UT level improvement in Q2..
Could you comment on the H1 vs H2 ratio maintained the previous call, 47:53, and the gross margin target of H2 based on the ratio?.
As I mentioned in the call, we are cautiously optimistic. We continue to expect our business momentum will improve through 2024, leading to a stronger second half with operating momentum, end markets and end customer inventory levels currently improving.
The ratio would be very close as noted on the previous call, which is still depending on end consumer demand. As for the margin target, we continuously work to improve our cost structure for a better margin compared to H1, such as controlling electricity usage in order to manage electricity charges..
What is the company's long-term depreciation as the CapEx increase in H2? And could you comment on the company's strength and action for the DDIC OSAT competition, including China?.
Let me answer the depreciation question. By using 1Q '24 depreciation as a baseline, the depreciation rate of H1 should be around a 1%, 3% quarterly increase. However, it would be up to a 3% to 4% quarterly CapEx increase..
Regarding the competition, including China, we have always assumed there would be competition in the industry. We always run our business with competition in mind. We are in a strong position to support customers and are positive about our business going forward. Our focus is on providing a superior OSAT product and service.
We continue to improve our quality, operations and competitiveness. This includes expanding the penetration rate of high-end products such as OLED, automotive panels and high-end TVs to maintain the company's competitive advantage. We also expect to benefit from a higher quality level requirement for European and American brands..
Thank you. And I am not showing any further questions in the queue. I would like to turn the call back over to G. S. Shen..
That concludes our question-and-answer session. Thank you for participating. I'll turn the floor back to Mr. S.J. Cheng for any closing comments..
Thank you, everyone, for joining our conference call. Please email our IR team if you have any more questions. We appreciate your support. Good-bye..
Ladies and gentlemen, this concludes today's conference call. Thank you for participating. You may now disconnect..