Approved acquisition of 6-inch Fab

Subject: Board of Directors approved acquisition of 6-inch Fab

Contents:

1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City):

Specific part of buildings and adjunctive facilities located at No.3, Creation 3rd Road, and No.8, Creation 4th Road, HsinChu Science Park, and machinery equipment of 6-inch Fab.

2.Date of occurrence of the event:2021/08/05

3.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price:

Buildings and adjunctive facilities：NT$0.82 billons

The area of building is around 39,842.69 square meters (equivalent to

12,052.42 pings); NT$68,036 per ping (includingadjunctive facilities);

Machine：NT$ 1.7 billion.

Total transaction amount: NT$2.52 billion (tax excluded)

4.Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed): Macronix International Co., Ltd.；NA

5.Where the trading counterparty is a related party, announcement shall also be made of the reason for choosing the related party as trading counterparty and the identity of the previous owner, its relationship with the Company and the trading counterparty, and the previous date and monetary amount of transfer: NA

6.Where an owner of the underlying assets within the past five years has been a related party of the Company, the announcement shall also include the date and price of acquisition and disposal by the related party, and its relationship with the Company at the time of the transaction: NA

7.Projected gain (or loss) through disposal (not applicable for acquisition of assets; those with deferral should provide a table explaining recognition):NA

8.Terms of delivery or payment (including payment period and monetary amount), restrictive covenants in the contract, and other important terms and conditions:follow the asset transaction agreement

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

Negotiated by both parties;reference the appraisal report made by professional appraiser; the Board of Directors

10.Name of the professional appraisal firm or company and its appraisal price:

Daiwan International Management Consulting Ic.: appraisal amount

NT$820,920,606 (the machinenot included)

CBRE Taiwan Valuation and Advisory Services: appraisal amount

NT$711,812,658(the machinenot included)

11.Name of the professional appraiser:

Daiwan International Management Consulting Ic.:LU,RUI-WEN、LI,DA-JING

CBRE Taiwan Valuation and Advisory Services:SHI,FU-XUE、LI,ZHI-WEI

12.Practice certificate number of the professional appraiser:

SHI,FU-XUE：(2019) TP-REA-000273

LI,ZHI-WEI：(2019) TP-REA-000272

13.The appraisal report has a limited price, specific price, or special price: NA

14.An appraisal report has not yet been obtained: NA

15.Reason for an appraisal report not being obtained: NA

16.Reason for any significant discrepancy with the appraisal reports and opinion of the CPA:NA

17.Name of the CPA firm: NA

18.Name of the CPA:NA

19.Practice certificate number of the CPA: NA

20.Broker and broker's fee: None

21.Concrete purpose or use of the acquisition or disposal: For the need of business growth and future development

22.Any dissenting opinions of directors to the present transaction: None

23.Whether the counterparty of the current transaction is a related party: NA

24.Date of the board of directors resolution: NA

25.Date of ratification by supervisors or approval by the audit committee: NA

26.The transaction is to acquire a real property or right-of-use asset from a related party: NA

27.The price assessed in accordance with the Article 16 of the Regulations Governing the Acquisition and Disposal of Assets by Public Companies: NA

28.Where the above assessed price is lower than the transaction price, the price assessed in accordance with the Article 17 of the same regulations: NA

29.Any other matters that need to be specified: None