United Microelectronics Corp

Cusip #Y92370108 Item 1: Reporting Person - Abigail P. Johnson Item 2: (a) [ ] (b) [ ] Item 4: United States of America Item 5: 0 Item 6: 0 Item 7: 95,928,982 Item 8: 0 Item 9: 95,928,982 Item 11: 0.772% Item 12: IN

Item 1(b). Address of Issuer's Principal Executive Offices:

8F, NO.68, SEC. 1, NEIHU RD. TAIPEI, F5 11493 CHINA

Item 2(b). Address or Principal Business Office or, if None, Residence:

245 Summer Street, Boston, Massachusetts 02210

Item 2(d). Title of Class of Securities:

Item 3. This statement is filed pursuant to Rule 13d-1(b) or 13d-2(b) or (c) and the person filing, FMR LLC, is a parent holding company in accordance with Section 240.13d-1(b)(1)(ii)(G). (Note: See Exhibit A).

(a) Amount Beneficially Owned: 95,928,982

(c) Number of shares as to which such person has:

(i) sole power to vote or to direct the vote: 2,757,000

(ii) shared power to vote or to direct the vote: 0

(iii) sole power to dispose or to direct the disposition of: 95,928,982

(iv) shared power to dispose or to direct the disposition of: 0

Item 5. Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date hereof, the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following (X).

Item 6. Ownership of More than Five Percent on Behalf of Another Person.

One or more other persons are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the COMMON STOCK of UNITED MICROELECTRONICS CORP. No one other person's interest in the COMMON STOCK of UNITED MICROELECTRONICS CORP is more than five percent of the total outstanding COMMON STOCK.

Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company.

Item 8. Identification and Classification of Members of the Group.

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.