2nd Supplementary Agreement of New Generation Rolling Stock(E321/E322)

1.Name and nature of the underlying asset (e.g., land located at Sublot XX,Lot XX, North District, Taichung City): 2nd Supplementary
    Agreement of New Generation Rolling Stock(E321/E322)
2.Date of occurrence of the event: 2025/02/27.
3.Transaction unit amount (e.g.XX square meters, equivalent to XX ping),unit price, and total transaction price:
   (1)Transaction volume: 4 items.
   (2)Total Transaction price: approx. JPY 45,000,000.
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): Hitachi Toshiba Supreme
    Consortium (HTSC), which is not a related party of THSRC
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: Not applicable.
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: Not applicable.
7.Projected gain (or loss) through disposal (not applicable for acquisition of assets; those with deferral should provide a table
    explaining recognition): Not applicable.
8.Terms of delivery or payment (including payment period and monetary amount), restrictive covenants in the contract, and
    other important terms and conditions: Terms of delivery and payment: to be carried out in accordance with the relevant contract;
    restrictive covenants in the said contracts: none other important stipulations: none
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:
    (1)The manner of deciding on this transaction and the reference basis for the decision on price: Conducted in accordance with
          THSRC bidding documents and price negotiation. 
    (2)Decision-making department: Chairman.
10.Name of the professional appraisal firm or company and its appraisal price: Not applicable.
11.Name of the professional appraiser: Not applicable.
12.Practice certificate number of the professional appraiser: Not applicable.
13.The appraisal report has a limited price, specific price, or special price: Not applicable.
14.An appraisal report has not yet been obtained: Not applicable.
15.Reason for an appraisal report not being obtained: Not applicable.
16.Reason for any significant discrepancy with the appraisal reports and opinion of the CPA: Not applicable.
17.Name of the CPA firm: Not applicable.
18.Name of the CPA: Not applicable.
19.Practice certificate number of the CPA: Not applicable.
20.Broker and broker's fee: Not applicable.
21.Concrete purpose or use of the acquisition or disposal: Increase the operation capacity of THSRC.
22.Any dissenting opinions of directors to the present transaction: None. 
23.Whether the counterparty of the current transaction is a related party: No
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: No.
27.The price assessed in accordance with the Article 16 of the Regulations Governing the Acquisition and Disposal of Assets 
      by Public Companies: Not applicable.
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: Not applicable.
29.Any other matters that need to be specified: In accordance with the limits to authority, the Contract Adjustment will be
      conducted once the RFA is approved by Chairman on February 27, 2025.