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UMC (2303) Annual Reports

Q: Where can I download UMC (2303) annual reports?

Every financial year on this page links straight to the PDF filed with the Market Observation Post System (MOPS), Taiwan's statutory disclosure platform. 2 years are available in English.

Q: What is an investor conference?

The Taiwanese equivalent of an earnings call. Listed companies present quarterly results and file the presentation deck with MOPS, usually in both languages.

Listed on the Taiwan Stock Exchange (TWSE), classified under Semiconductors. This page collects the company's annual reports, with files served directly by the Market Observation Post System (MOPS).

english annual reports

english presentations

2025

latest year

Company profile

Sector： All Semiconductors stocks →
Listing date： 1985-07-16
Incorporated： 1980-05-22
Paid-in capital： NT$125.7bn

Website：Official site ↗

Financial history

Revenue & profit

Quarterly · In bn (TWD)

Revenue 68.7 bn Net income 42.2 bn

Taiwan filings are cumulative; figures here are restated to single quarters.

Show table：Income statement

Item	2013Q1	2013Q2	2013Q3	2013Q4	2014Q1	2014Q2	2014Q3	2014Q4	2015Q1	2015Q2	2015Q3	2015Q4	2016Q1	2016Q2	2016Q3	2016Q4	2017Q1	2017Q2	2017Q3	2017Q4	2018Q1	2018Q2	2018Q3	2018Q4	2019Q1	2019Q2	2019Q3	2019Q4	2020Q1	2020Q2	2020Q3	2020Q4	2021Q1	2021Q2	2021Q3	2021Q4	2022Q1	2022Q2	2022Q3	2022Q4	2023Q1	2023Q2	2023Q3	2023Q4	2024Q1	2024Q2	2024Q3	2024Q4	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
Revenue	27.8	31.9	33.4	30.7	31.7	35.9	35.2	37.2	37.6	38.0	35.3	33.9	34.4	37.0	38.2	38.3	37.4	37.5	37.7	36.6	37.5	38.9	39.4	35.5	32.6	36.0	37.7	41.9	42.3	44.4	44.9	45.3	47.1	50.9	55.9	59.1	63.4	72.1	75.4	67.8	54.2	56.3	57.1	55.0	54.6	56.8	60.5	60.4	57.9	58.8	59.1	61.8	61.0	68.7
Gross profit	4.49	6.18	7.34	5.56	5.90	8.21	7.56	10.2	9.16	8.72	6.91	6.98	5.03	8.28	8.30	8.76	7.43	6.74	6.59	6.30	4.64	6.68	6.92	4.60	2.26	5.65	6.43	6.97	8.12	10.3	9.77	10.8	12.5	15.9	20.5	23.1	27.5	33.5	35.7	29.1	19.2	20.3	20.5	17.8	16.9	20.0	20.4	18.3	15.4	16.9	17.6	19.0	17.8	22.3
Operating income	0.29	1.15	2.39	0.19	0.94	2.92	1.69	4.53	4.10	3.88	0.98	1.88	-0.02	2.45	1.48	2.28	1.37	1.67	1.63	1.90	0.77	3.18	2.44	-0.59	-1.60	1.76	2.51	2.02	3.41	5.85	7.13	5.61	7.62	11.3	15.1	17.6	22.3	28.2	30.2	23.6	14.5	15.7	15.3	12.4	11.7	13.9	14.1	12.0	9.79	10.8	11.1	12.2	11.3	14.9
Pre-tax income	7.54	1.78	3.96	1.08	1.29	3.85	2.99	5.38	4.35	5.18	1.39	2.79	0.03	1.80	1.95	1.07	1.07	2.12	2.87	1.75	1.86	2.09	0.83	-2.59	-0.35	1.14	1.98	2.96	0.82	6.66	9.21	11.2	11.0	13.2	19.4	18.2	23.6	25.6	32.4	24.5	19.1	18.5	18.6	14.7	12.7	16.4	16.6	10.5	9.35	10.2	14.6	15.5	16.6	45.2
Net income	6.41	1.74	3.37	0.59	1.11	3.33	2.58	4.46	3.91	4.55	1.31	3.07	0.08	1.58	1.76	0.45	1.50	1.48	2.46	1.19	3.03	2.42	0.2	-3.00	0.09	0.94	1.94	3.16	1.23	6.05	9.01	10.9	9.89	11.9	17.4	16.0	20.1	21.5	27.3	19.1	16.4	15.9	16.0	13.2	10.4	13.8	14.4	8.46	7.74	8.85	14.9	10.0	16.1	42.2

Balance sheet

Quarterly · In bn (TWD)

Total assets 666 bn Total liabilities 222 bn

Equity = assets − liabilities. Balance-sheet figures are period-end balances, not cumulative.

Show table：Balance sheet

Item	2013Q1	2013Q2	2013Q3	2013Q4	2014Q1	2014Q2	2014Q3	2014Q4	2015Q1	2015Q2	2015Q3	2015Q4	2016Q1	2016Q2	2016Q3	2016Q4	2017Q1	2017Q2	2017Q3	2017Q4	2018Q1	2018Q2	2018Q3	2018Q4	2019Q1	2019Q2	2019Q3	2019Q4	2020Q1	2020Q2	2020Q3	2020Q4	2021Q1	2021Q2	2021Q3	2021Q4	2022Q1	2022Q2	2022Q3	2022Q4	2023Q1	2023Q2	2023Q3	2023Q4	2024Q1	2024Q2	2024Q3	2024Q4	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
Current assets	91.8	92.9	88.9	88.8	96.8	98.4	91.8	96.9	101	109	95.0	94.8	102	104	107	110	112	120	125	139	136	137	140	141	147	151	163	154	160	168	163	164	179	208	212	233	250	266	267	252	242	239	219	217	205	207	194	190	192	195	193	205	216	230
Total assets	300	303	300	296	302	304	301	313	321	331	329	337	345	368	375	387	379	386	384	394	386	381	373	365	374	370	374	370	360	368	368	378	394	422	429	464	483	500	519	533	550	553	547	559	567	587	574	570	573	548	555	579	600	666
Current liabilities	37.3	57.6	52.3	48.2	49.2	49.7	45.4	48.1	44.4	43.5	44.5	48.3	41.6	80.0	83.4	72.0	66.9	87.7	82.4	88.1	72.6	59.2	51.4	49.9	52.6	77.0	70.3	72.7	61.1	65.1	59.1	78.2	78.5	85.0	84.5	105	93.1	132	108	109	106	143	92.1	99.0	88.4	125	88.3	75.3	72.9	110	82.3	87.6	79.6	106
Total liabilities	86.0	93.2	88.3	83.5	83.8	88.7	84.4	88.2	91.8	107	105	109	116	148	156	168	163	173	170	180	169	170	160	158	164	168	169	163	150	158	147	142	145	181	171	183	181	217	204	198	194	226	197	200	189	231	206	192	182	211	194	199	193	222
Equity	214	210	211	212	218	215	216	225	229	224	224	229	228	220	219	219	217	213	214	214	216	211	213	207	210	202	205	207	211	209	221	236	250	240	258	281	302	283	315	335	356	327	350	360	378	356	368	378	391	337	361	380	407	444

Cash flow

Quarterly · In bn (TWD)

Operating 33.7 bn Investing -7.43 bn Financing -10.8 bn

Positive = cash in, negative = cash out.

Show table：Cash flow statement

Item	2013Q1	2013Q2	2013Q3	2013Q4	2014Q1	2014Q2	2014Q3	2014Q4	2015Q1	2015Q2	2015Q3	2015Q4	2016Q1	2016Q2	2016Q3	2016Q4	2017Q1	2017Q2	2017Q3	2017Q4	2018Q1	2018Q2	2018Q3	2018Q4	2019Q1	2019Q2	2019Q3	2019Q4	2020Q1	2020Q2	2020Q3	2020Q4	2021Q1	2021Q2	2021Q3	2021Q4	2022Q1	2022Q2	2022Q3	2022Q4	2023Q1	2023Q2	2023Q3	2023Q4	2024Q1	2024Q2	2024Q3	2024Q4	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
Operating	9.86	9.57	13.1	10.9	6.23	7.68	12.0	18.8	16.9	11.5	16.3	15.4	11.4	5.57	13.9	15.6	13.3	14.8	11.4	12.9	8.78	14.3	15.8	12.1	8.18	12.3	-3.08	37.5	14.7	16.4	18.5	16.1	18.3	23.1	22.1	26.8	30.1	35.1	39.7	41.0	27.0	13.8	19.1	26.2	20.8	22.7	17.4	33.0	23.8	22.1	20.9	33.0	22.0	33.7
Investing	-5.25	-7.81	-10.7	-7.74	-6.10	-7.03	-12.7	-16.8	-16.5	-14.8	-20.4	-17.1	-19.3	-27.1	-15.4	-18.3	-16.3	-8.11	-4.98	-6.03	0.67	-6.08	-5.48	-4.61	-5.68	-4.19	-3.97	-17.8	-9.11	-7.88	-5.69	-17.4	-7.12	-18.5	-23.2	-13.3	14.8	-11.7	-21.4	-36.0	-29.6	-23.7	-17.7	-26.8	-29.9	-15.1	-23.9	-17.0	-10.5	-9.44	-16.1	-17.1	-21.4	-7.43
Financing	5.73	-2.40	-4.47	-2.79	2.39	-4.42	-6.66	0.43	8.15	13.8	-9.82	2.89	14.5	11.2	8.88	4.22	7.85	0.71	-4.60	5.21	-13.7	-10.8	-3.25	-5.72	2.18	-6.47	4.14	-9.72	-5.85	-2.95	-13.7	-3.15	2.58	13.2	-9.69	6.37	-7.96	-13.4	-26.7	-9.19	1.35	1.06	-27.6	-3.89	-6.44	-5.71	-12.8	-14.3	-13.8	1.15	-15.2	-11.4	-3.69	-10.8
Cash at period end	53.4	52.9	50.3	50.8	53.9	49.6	42.7	46.2	54.0	64.0	52.1	53.3	59.5	49.4	55.3	57.6	60.8	68.1	69.9	81.7	77.1	75.2	81.5	83.7	88.7	90.4	86.8	95.5	95.2	99.9	98.8	94.0	107	124	113	133	172	184	181	174	172	163	141	133	119	122	103	105	106	112	104	111	109	125

Profitability

Quarterly · %

Gross margin 32.5% Operating margin 21.8% Net margin 61.4%

Gross, operating and net margin = the respective profit ÷ revenue.

Show table：Profitability

Item	2013Q1	2013Q2	2013Q3	2013Q4	2014Q1	2014Q2	2014Q3	2014Q4	2015Q1	2015Q2	2015Q3	2015Q4	2016Q1	2016Q2	2016Q3	2016Q4	2017Q1	2017Q2	2017Q3	2017Q4	2018Q1	2018Q2	2018Q3	2018Q4	2019Q1	2019Q2	2019Q3	2019Q4	2020Q1	2020Q2	2020Q3	2020Q4	2021Q1	2021Q2	2021Q3	2021Q4	2022Q1	2022Q2	2022Q3	2022Q4	2023Q1	2023Q2	2023Q3	2023Q4	2024Q1	2024Q2	2024Q3	2024Q4	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
Gross margin	16.2%	19.4%	22.0%	18.1%	18.6%	22.9%	21.5%	27.4%	24.3%	22.9%	19.6%	20.6%	14.6%	22.4%	21.8%	22.9%	19.9%	17.9%	17.5%	17.2%	12.4%	17.2%	17.6%	12.9%	6.9%	15.7%	17.1%	16.6%	19.2%	23.1%	21.8%	23.9%	26.5%	31.3%	36.8%	39.1%	43.4%	46.5%	47.3%	42.9%	35.5%	36.0%	35.9%	32.4%	30.9%	35.2%	33.8%	30.4%	26.7%	28.7%	29.8%	30.7%	29.2%	32.5%
Operating margin	1.1%	3.6%	7.2%	0.6%	3.0%	8.1%	4.8%	12.2%	10.9%	10.2%	2.8%	5.5%	-0.1%	6.6%	3.9%	5.9%	3.7%	4.4%	4.3%	5.2%	2.0%	8.2%	6.2%	-1.7%	-4.9%	4.9%	6.7%	4.8%	8.1%	13.2%	15.9%	12.4%	16.2%	22.2%	27.1%	29.8%	35.2%	39.1%	40.0%	34.8%	26.7%	27.8%	26.8%	22.6%	21.4%	24.5%	23.3%	19.8%	16.9%	18.4%	18.8%	19.8%	18.5%	21.8%
Net margin	23.1%	5.5%	10.1%	1.9%	3.5%	9.3%	7.3%	12.0%	10.4%	12.0%	3.7%	9.1%	0.2%	4.3%	4.6%	1.2%	4.0%	3.9%	6.5%	3.3%	8.1%	6.2%	0.5%	-8.4%	0.3%	2.6%	5.1%	7.5%	2.9%	13.6%	20.1%	24.0%	21.0%	23.3%	31.0%	27.1%	31.6%	29.8%	36.3%	28.2%	30.2%	28.2%	28.0%	24.0%	19.1%	24.3%	23.9%	14.0%	13.4%	15.1%	25.3%	16.2%	26.4%	61.4%

Returns & leverage

Quarterly · %

ROE 21.3% ROA 13.7% Debt ratio 33.3%

ROE / ROA = trailing four-quarter net income ÷ average equity / total assets (annual mode: the year’s net income ÷ average of opening and closing). Not computed when the denominator is zero or negative.

Show table：Returns & leverage

Item	2013Q1	2013Q2	2013Q3	2013Q4	2014Q1	2014Q2	2014Q3	2014Q4	2015Q1	2015Q2	2015Q3	2015Q4	2016Q1	2016Q2	2016Q3	2016Q4	2017Q1	2017Q2	2017Q3	2017Q4	2018Q1	2018Q2	2018Q3	2018Q4	2019Q1	2019Q2	2019Q3	2019Q4	2020Q1	2020Q2	2020Q3	2020Q4	2021Q1	2021Q2	2021Q3	2021Q4	2022Q1	2022Q2	2022Q3	2022Q4	2023Q1	2023Q2	2023Q3	2023Q4	2024Q1	2024Q2	2024Q3	2024Q4	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
ROE	—	—	—	5.7%	3.1%	4.0%	3.5%	5.3%	6.4%	7.0%	6.5%	5.7%	3.9%	2.7%	2.9%	1.7%	2.4%	2.4%	2.7%	3.1%	3.8%	4.3%	3.2%	1.3%	-0.1%	-0.9%	-0.0%	3.0%	3.5%	6.0%	9.1%	12.3%	15.6%	18.5%	20.9%	21.3%	23.7%	28.6%	29.6%	28.6%	25.6%	25.8%	20.3%	17.7%	15.1%	15.6%	14.4%	12.8%	11.6%	11.4%	11.0%	11.0%	12.5%	21.3%
ROA	—	—	—	4.1%	2.3%	2.8%	2.5%	3.8%	4.6%	4.9%	4.5%	4.0%	2.7%	1.7%	1.8%	1.1%	1.5%	1.4%	1.6%	1.7%	2.1%	2.4%	1.8%	0.7%	-0.1%	-0.5%	-0.0%	1.7%	2.0%	3.4%	5.2%	7.3%	9.5%	10.6%	12.6%	13.1%	14.9%	16.3%	17.9%	17.6%	16.3%	15.0%	12.6%	11.3%	9.9%	9.4%	9.2%	8.3%	7.8%	7.0%	7.1%	7.2%	8.5%	13.7%
Debt ratio	28.6%	30.8%	29.5%	28.2%	27.8%	29.2%	28.1%	28.2%	28.6%	32.3%	32.0%	32.2%	33.8%	40.3%	41.6%	43.4%	42.9%	44.7%	44.2%	45.7%	43.9%	44.7%	43.0%	43.4%	43.9%	45.4%	45.2%	44.0%	41.5%	43.1%	40.0%	37.5%	36.7%	43.0%	39.9%	39.5%	37.4%	43.3%	39.3%	37.1%	35.3%	40.9%	36.0%	35.7%	33.3%	39.3%	35.8%	33.7%	31.8%	38.5%	35.0%	34.4%	32.2%	33.3%

EPS

Quarterly · NT$

EPS NT$3.39

Show table：EPS

Item	2013Q1	2013Q2	2013Q3	2013Q4	2014Q1	2014Q2	2014Q3	2014Q4	2015Q1	2015Q2	2015Q3	2015Q4	2016Q1	2016Q2	2016Q3	2016Q4	2017Q1	2017Q2	2017Q3	2017Q4	2018Q1	2018Q2	2018Q3	2018Q4	2019Q1	2019Q2	2019Q3	2019Q4	2020Q1	2020Q2	2020Q3	2020Q4	2021Q1	2021Q2	2021Q3	2021Q4	2022Q1	2022Q2	2022Q3	2022Q4	2023Q1	2023Q2	2023Q3	2023Q4	2024Q1	2024Q2	2024Q3	2024Q4	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
EPS（NT$）	0.52	0.15	0.28	0.06	0.09	0.28	0.24	0.36	0.32	0.36	0.14	0.26	0.02	0.21	0.24	0.21	0.19	0.17	0.28	0.15	0.28	0.30	0.15	-0.15	0.10	0.15	0.25	0.32	0.19	0.55	0.76	0.92	0.85	0.98	1.43	1.31	1.61	1.74	2.19	1.55	1.31	1.27	1.29	1.06	0.84	1.11	1.17	0.68	0.62	0.72	1.20	0.80	1.29	3.39

Revenue & profit

Year-to-date · In bn (TWD)

Revenue 130 bn Net income 58.3 bn

Year-to-date = summed from the first quarter of the fiscal year; balance-sheet items are period-end balances.

Balance sheet

Year-to-date · In bn (TWD)

Total assets 666 bn Total liabilities 222 bn

Equity = assets − liabilities. Balance-sheet figures are period-end balances, not cumulative.

Cash flow

Year-to-date · In bn (TWD)

Operating 55.7 bn Investing -28.8 bn Financing -14.4 bn

Positive = cash in, negative = cash out.

Profitability

Year-to-date · %

Gross margin 30.9% Operating margin 20.2% Net margin 45.0%

Gross, operating and net margin = the respective profit ÷ revenue.

Returns & leverage

Year-to-date · %

ROE 21.3% ROA 13.7% Debt ratio 33.3%

EPS

Year-to-date · NT$

EPS NT$4.68

Revenue & profit

Annual · In bn (TWD)

Revenue 238 bn Net income 41.5 bn

Annual = sum of four quarters of a complete fiscal year (incomplete years are omitted); balance-sheet items are year-end balances.

Show table：Income statement

Item	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
Revenue	124	140	145	148	149	151	148	177	213	279	223	232	238
Gross profit	23.6	31.9	31.8	30.4	27.1	22.8	21.3	39.0	72.0	126	77.7	75.7	68.9
Operating income	4.03	10.1	10.8	6.19	6.57	5.80	4.69	22.0	51.7	104	57.9	51.6	44.0
Pre-tax income	14.4	13.5	13.7	4.85	7.80	2.18	5.74	27.9	61.8	106	70.9	56.2	49.6
Net income	12.1	11.5	12.8	3.86	6.63	2.64	6.13	27.2	55.1	88.0	61.4	47.1	41.5

Balance sheet

Annual · In bn (TWD)

Total assets 579 bn Total liabilities 199 bn

Equity = assets − liabilities. Balance-sheet figures are period-end balances, not cumulative.

Show table：Balance sheet

Item	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
Current assets	88.8	96.9	94.8	110	139	141	154	164	233	252	217	190	205
Total assets	296	313	337	387	394	365	370	378	464	533	559	570	579
Current liabilities	48.2	48.1	48.3	72.0	88.1	49.9	72.7	78.2	105	109	99.0	75.3	87.6
Total liabilities	83.5	88.2	109	168	180	158	163	142	183	198	200	192	199
Equity	212	225	229	219	214	207	207	236	281	335	360	378	380

Cash flow

Annual · In bn (TWD)

Operating 99.9 bn Investing -53.1 bn Financing -39.2 bn

Positive = cash in, negative = cash out.

Show table：Cash flow statement

Item	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
Operating	43.5	44.8	60.0	46.5	52.5	50.9	54.9	65.8	90.3	146	86.0	93.9	99.9
Investing	-31.5	-42.6	-68.7	-80.1	-35.4	-15.5	-31.7	-40.1	-62.2	-54.4	-97.8	-85.9	-53.1
Financing	-3.92	-8.26	15.1	38.8	9.16	-33.5	-9.87	-25.6	12.5	-57.3	-29.1	-39.2	-39.2
Cash at period end	50.8	46.2	53.3	57.6	81.7	83.7	95.5	94.0	133	174	133	105	111

Profitability

Annual · %

Gross margin 29.0% Operating margin 18.5% Net margin 17.5%

Gross, operating and net margin = the respective profit ÷ revenue.

Show table：Profitability

Item	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
Gross margin	19.0%	22.8%	21.9%	20.5%	18.1%	15.1%	14.4%	22.1%	33.8%	45.1%	34.9%	32.6%	29.0%
Operating margin	3.3%	7.2%	7.5%	4.2%	4.4%	3.8%	3.2%	12.4%	24.3%	37.4%	26.0%	22.2%	18.5%
Net margin	9.8%	8.2%	8.9%	2.6%	4.4%	1.8%	4.1%	15.4%	25.9%	31.6%	27.6%	20.3%	17.5%

Returns & leverage

Annual · %

ROE 11.0% ROA 7.2% Debt ratio 34.4%

Show table：Returns & leverage

Item	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
ROE	5.7%	5.3%	5.7%	1.7%	3.1%	1.3%	3.0%	12.3%	21.3%	28.6%	17.7%	12.8%	11.0%
ROA	4.1%	3.8%	4.0%	1.1%	1.7%	0.7%	1.7%	7.3%	13.1%	17.6%	11.3%	8.3%	7.2%
Debt ratio	28.2%	28.2%	32.2%	43.4%	45.7%	43.4%	44.0%	37.5%	39.5%	37.1%	35.7%	33.7%	34.4%

EPS

Annual · NT$

EPS NT$3.34

Show table：EPS

Item	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
EPS（NT$）	1.01	0.97	1.08	0.68	0.79	0.58	0.82	2.42	4.57	7.09	4.93	3.80	3.34

Source: Taiwan MOPS financial statements

UMC annual reports

	English	Chinese
2025 (ROC 114)	PDF	PDF
2024 (ROC 113)	PDF	PDF

About UMC filings

Where can I download UMC (2303) annual reports?

Every financial year in the table above links straight to the PDF filed with the Market Observation Post System (MOPS), Taiwan's statutory disclosure platform. 2 years are available in English, within a range covering 2024 to 2025.

Why are some years Chinese only?

Filing an English annual report is only mandatory for larger Taiwanese issuers; smaller companies and those on the Emerging Stock Board file in Chinese. Where no English edition exists this site links the Chinese PDF rather than leaving the year blank, so you can still reach the document.

What is an investor conference (法人說明會)?

It is the Taiwanese equivalent of an earnings call or analyst briefing. Listed companies present quarterly results and outlook, and file the presentation deck with MOPS — usually in both Chinese and English. Many also publish a webcast recording.

How does Taiwan's reporting calendar work?

Taiwanese issuers file quarterly financial reports plus an annual report, and publish monthly revenue figures — a disclosure cadence that is more frequent than Hong Kong or Singapore. Financial years are numbered using the ROC calendar (ROC 114 = 2025); this site shows both.

Source: Market Observation Post System (MOPS), Taiwan. All PDF links point to the original files; nothing is re-hosted here.
Browse all Taiwan listed companies, or read this page in Chinese — the Chinese edition also carries the letter to shareholders and the revenue breakdown.