Taiwan-based LED epitaxial wafer and chip makers Epistar and Formosa Epitaxy as well as LED chip packager Everlight Electronics had April revenues decreasing on month, while LED packaging companies Ledtech Electronics, Unity Opto Technology and Bright Led Electronics saw sequential growth.
| Six Taiwan-based LED makers: Revenues, April 2011 (NT$m) |
| Company | Amount | M/M | Y/Y | January-April amount | Y/Y |
| Epistar | 1,693 | (0.31%) | 2.84% | 6,141 | 8.18% |
| Formosa Epitaxy | 374 | (6.48%) | (2.56%) | 1,480 | 32.12% |
| Everlight | 1,421 | (2.68%) | (0.15%) | 5,159 | 3.02% |
| Ledtech | 126 | 9.97% | (10.70%) | 402 | (7.12%) |
| Unity Opto | 606 | 10.16% | 0.70% | 2,228 | 22.88% |
| Bright Led | 421 | 1.76% | (10.67%) | 1,449 | (3.27%) |
Source: Companies, compiled by Digitimes, May 2011