umc-ex99_6.htm

99.1 Announcement on 2018/02/26: Represent subsidiary He Jian Technology (SuZhou) Co., Ltd. to announce related materials on acquisition of machinery and equipment

99.3 Announcement on 2018/02/09: the trading and pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC

Represent subsidiary He Jian Technology (SuZhou) Co., Ltd. to announce related materials on acquisition of machinery and equipment

1. Name and nature of the subject matter (e.g. land located at Sublot XX, Lot XX, North District, Taichung City): Machinery and equipment

3. Transaction volume (e.g. XX square meters, equivalent to XX p'ing), unit price, total transaction price:

4. Counterparty to the trade and its relationship with the company (if the trading counterpart is a natural person and is not an actual related party of the Company, the name of the trading counterpart is not required to be disclosed):

5. Where the counterpart to the trade is an actual related party, a public announcement shall also include the reason for choosing the related party as trading counterpart and the identity of the previous owner (including its relationship with the company and the trading counterpart), price of transfer and the date of acquisition: Not applicable

6. Where a person who owned the property within the past five years has been an actual related person of the company, a public announcement shall also include the dates and prices of acquisition and disposal by the related person and the person’s relationship to the company at those times: Not applicable

7. Anticipated loss or profit from the disposal (not applicable in cases of acquisition of assets) (where originally deferred, the status or recognition shall be stated and explained): Not applicable

8. Terms of delivery or payment (including payment period and monetary amount), restrictive covenants in the contract, and other important stipulations: Base on purchase order payment term.

9. The manner of deciding on this transaction (such as tender invitation, price comparison, or price negotiation), the reference basis for the decision on price and the decision-making department:

10. Name of the professional appraisal institution and its appraisal amount: Not applicable

11. Reason for any significant discrepancy with the transaction amount, and opinion of the certifying CPA: Not applicable

12. Is the appraisal report price a limited price or specific price? : Not applicable

17. Do the directors have any objection to the present transaction? : Not applicable

This is to report the changes or status of 1) Sales volume, 2) Funds lent to other parties, 3) Endorsements and guarantees, and 4) Financial derivative transactions for the period of January 2018.


Period	Items	2018	2017	Changes	%
January	Net sales	13,175,662	12,651,900	523,762	4.14%
Year-to-Date	Net sales	13,175,662	12,651,900	523,762	4.14%


Balance as of period end	This Month (actual amount provided)	Last Month (actual amount provided)	Limit of lending
UMC	9,651,240	9,870,360	21,339,159
Note : On December 14, 2016 and December 13,2017, the board of directors resolved to lend funds to USC(Xiamen) for the amount up to US$ 332 million. The actual amount lent to USC(Xiamen) as of January 31, 2018 was US$ 132 million.


Balance as of period end	This Month (actual amount provided)	Last Month (actual amount provided)	Limit of lending
UMC (Note1)	1,700,000	1,700,000	96,026,217
UMC (Note2)	9,011,700	9,216,300	96,026,217
UMC (Note3)	20,124	19,767	96,026,217
Note1 : On December 24, 2014, the board of directors resolved to provide endorsement to Nexpower's syndicated loan from banks including Bank of Taiwan for the amount up to NT$ 1,700 million. Note2 : On February 22, 2017, the board of directors resolved to provide endorsement to USC(Xiamen) 's syndicated loan from banks for the amount up to US$ 310 million. Note3 : On April 26, 2017, the board of directors resolved to provide endorsement to SocialNex Italia 1 s.r.l. 's VAT guarantee to Italian Tax Office for the amount up to EUR$ 558 thousand.


Financial instruments	Option		Forwards	IRS
Financial instruments	Put	Call	Forwards	IRS
Deposit Paid	0	0	0	0
Royalty Income (Paid)	0	0	0	0
Unwritten-off Trading
Contracts	0	15,275,193	3,023,280	0
Fair Value	0	32,038	45,467	0
Net profit (loss) from Fair Value	0	433	45,467	0
Written-off Trading
Contracts	0	0	0	0
Realized profit (loss)	0	0	0	0

This is to report 1) the trading of directors, executive officers and 10% shareholders of United Microelectronics Corporation (“UMC”) (NYSE: UMC); 2) the pledge and clear of pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC;


Title	Name	Number of shares as of December 31, 2017	Number of shares as of January 31, 2018		Changes
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Title	Name	Number of shares as of December 31, 2017	Number of shares as of January 31, 2018		Changes
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