2BU5I-KSC500M3rd Generation Smart Card Key

Kona Mobility Co., Ltd. Covered Equipment Certification Attestation Letter 6/29/2026 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: 2BU5I-KSC500M Kona Mobility Co., Ltd. (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. This includes certifying that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. Kona Mobility Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Signed: Printed name: Hae Lee Jun Title: Manager Company Name: Kona Mobility Co., Ltd. Date: 6/29/2026

iCertifi Control Number - IC2026ASOP12463 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 30/06/2026 Ref: Attestation Statement Part 2.911(d)(7) Filing FCC ID: 2BU5I-KSC500M Kona Mobility Co., Ltd. certifies that, as of the dates of this application, Americas Compliance Consulting LLC dba iCertifi is our designated U.S. agent for service of process for the above referenced FCC ID. Manufacturer accepts to maintain an agent for no less than two year after the grantee has terminated all marketing and importation or the conclusion of any commission-related proceeding involving the equipment. iCertifi accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service process for the above referenced FCC ID. Designated U.S. Agent Information: Name: Americas Compliance Consulting LLC dba iCertifi FCC FRN: 0033399411 Address: 5809 US-2, Suite B, Albeni Plaza Priest River, Idaho 83856, United States Contact Person: Paul Preston Tel: +1 (866) 885-4575 Email: [email protected] Sincerely, Kona Mobility Co., Ltd.Americas Compliance Consulting LLC dba iCertifi FRN: FRN: 0033399411 Hae Lee JunPaul Preston [email protected]@icertifi.com +82 2 561-8202+1 (866) 885-4575 Signature: Signature:

Kona Mobility Co., Ltd. 6/29/2026 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 AUTHORITY TO ACT AS AGENT - FCC On our behalf, I appoint ONETECH Corp., to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in FCC regulations will have affixed to it a label identical to that submitted for approval with this application. In signing this letter, Applicant certifies that neither the applicant nor any party to the application is not subject to a denial of Federal benefits, that include FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. § 862 because of a conviction for possession or distribution of a controlled substance. See 47 CFR 1.2002(b) for the definition of a "party" for these purposes. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko North America Inc., still resides still resides with us. Sincerely, Signed: Printed name: Hae Lee Jun

Kona Mobility Co., Ltd. June 29, 2026 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY - FCC FCC ID: 2BU5I-KSC500M Pursuant to Sections 0.457(d) and 0.459 of the Commission’s Rules and FCC Guidance document 726920, we hereby request permanent confidential treatment of exhibits identified as such in the table below and request they are permanently withheld from public review based on the documents containing trade secrets and proprietary information not customarily released to the public. The public disclosure of this information might be harmful to the applicant and provide unjustified benefits to its competitors. We also request short-term confidentiality on certain exhibits until the intended date of marketing as outlined below. We request the exhibits be withheld from public view for a period of 180 days. We attest marketing of the product will only commence after the period of short-term confidentiality expires, or if marketing is to commence before the requested number of days listed above, the grantee will inform Nemko to release the Short-Term Confidentiality information withheld on the FCC equipment authorization website. Exhibit Type of Confidentiality Requested Block Diagrams ☒ Permanent ☐ Short Term External Photos ------------------ ☒ Short Term Internal Photos ☐ Permanent* ☒ Short Term Operation Description ☒ Permanent ☐ Short Term Parts List & Placement/BOM ☒ Permanent ☐ Short Term Tune-Up Procedure ☐ Permanent ☐ Short Term Schematic Diagrams ☒ Permanent ☐ Short Term Test Setup Photos ------------------ ☒ Short Term User’s Manual ☐ Permanent* ☒ Short Term The asterisked items (*) require further information to be provided in this justification letter before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 D01 found at: https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731 and review section II, 3) regarding specific information that must accompany these requests. Note: any documents held under the Short-Term confidentiality will automatically become public after the requested time if an appropriate extension request has not been received. Any exhibits (i.e., schematic diagrams) that may have already been requested to have “Permanent” confidentiality as shown above need not be repeated under Short-Term confidentiality request. Sincerely, Signed: Printed name: Hae Lee Jun Title: Manager Company Name: Kona Mobility Co., Ltd.

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Page 1 of 5 Report No.: OT-266-RWD-025 It should not be reproduced except in full, without the written approval of ONETECH. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) EMF TEST REPORT Test Report No. : OT-266-RWD-025 Reception No. : 2602000718 Applicant : Kona Mobility Co., Ltd. Address : 23F, 2095 Dalgubeol-daero, Jung-gu, Daegu, South Korea Manufacturer : KONA I Co., Ltd. Address : 8F, 3, Eunhaeng-ro, Yeongdeungpo-gu, South Korea Type of Equipment : 3rd Generation Smart Card Key FCC ID : 2BU5I-KSC500M Model No. : KSC500M Multiple Model Name : N/A Serial number : N/A Total page of Report : 5 pages (including this page) Date of Incoming : April 28, 2026 Date of issuing : June 29, 2026 SUMMARY The equipment complies with the regulation; FCC CFR 47 PART 2.1093 This test report only contains the result of a single test of the sample supplied for the examination. It is not a generally valid assessment of the features of the respective products of the mass-production. This test report is not associated with the accreditation granted by the Korean Laboratory Accreditation Scheme (KOLAS). Tested by Su-Min, You / Senior Project Engineer ONETECH Corp. Reviewed by Tae-Ho, Kim / Chief Engineer ONETECH Corp. Approved by Jae-Ho, Lee / Director ONETECH Corp. Page 2 of 5 Report No.: OT-266-RWD-025 It should not be reproduced except in full, without the written approval of ONETECH. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) CONTENTS PAGE 1. VERIFICATION OF COMPLIANCE .............................................................................................................................. 4 2. REQUIREMENT ................................................................................................................................................................. 5 2.1 LIMIT AND CALCULATION METHOD .................................................................................................................. 5 3. CALCULATED RESULTS ................................................................................................................................................ 5 3.1 LIMIT AND CALCULATION FOR SINGLE ............................................................................................................ 5 Page 3 of 5 Report No.: OT-266-RWD-025 It should not be reproduced except in full, without the written approval of ONETECH. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) Revision History Rev. No. Issue Report No. Issued Date Revisions Section Affected 0 OT-266-RWD-025 June 29, 2026 Initial Release All Page 4 of 5 Report No.: OT-266-RWD-025 It should not be reproduced except in full, without the written approval of ONETECH. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) 1. VERIFICATION OF COMPLIANCE Applicant : Kona Mobility Co., Ltd. Address : 23F, 2095 Dalgubeol-daero, Jung-gu, Daegu, South Korea Contact Person : Hae Lee Jun / Manager Telephone No. : +82-2-561-8202 FCC ID : 2BU5I-KSC500M Model Name : KSC500M Brand Name : - Serial Number : N/A Date : June 29, 2026 E.U.T. DESCRIPTION 3rd Generation Smart Card Key THIS REPORT CONCERNS Original Grant TYPE OF EQUIPMENT TESTED Pre-Production KIND OF EQUIPMENT AUTHORIZATION REQUESTED Certification Modifications on the Equipment to Achieve Compliance None -. The above equipment was tested by ONETECH Corp. for compliance with the requirement set forth in the FCC Rules and Regulations. This said equipment in the configuration described in this report, shows the maximum emission levels emanating from equipment are within the compliance requirements. Page 5 of 5 Report No.: OT-266-RWD-025 It should not be reproduced except in full, without the written approval of ONETECH. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) 2. REQUIREMENT 2.1 LIMIT AND CALCULATION METHOD According to 47 CFR § 1.1307(b)(3)(i)(A), a single RF source (fixed, mobile, or portable device) is exempt from RF exposure evaluation if its available maximum time-averaged power is 1 mW or less, regardless of the separation distance. This specific exemption cannot be used in combination with other exemption criteria, except as permitted in paragraph (b)(3)(ii)(A). According to 47 CFR § 1.1307(b)(3)(ii)(A), multiple RF sources are exempt if the available maximum time-averaged power of each source is no more than 1 mW, and a separation distance of at least two centimeters is maintained between any operating radiating structures within the same device. However, if the sum of all multiple sources is less than 1 mW during the time-averaging period, they may be treated as a single source, and the separation distance is not required. This exemption cannot be used in conjunction with other criteria, except as permitted in paragraph (b)(3)(i)(A). 3. CALCULATED RESULTS 3.1 LIMIT AND CALCULATION FOR SINGLE Operating Freq. Band (MHz) Conducted Power Average Power Limit (mW) (dBm) (mW) 433.92 -26.10 0.002 1

Page 1 of 18 Report No.: OT-266-RWD-024 It should not be reproduced except in full, without the written approval of ONETECH. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) RADIO PERFORMANCE TEST REPORT Test Report No. : OT-266-RWD-024 Reception No. : 2602000718 Applicant : Kona Mobility Co., Ltd. Address : 23F, 2095 Dalgubeol-daero, Jung-gu, Daegu, South Korea Manufacturer : KONA I Co., Ltd. Address : 8F, 3, Eunhaeng-ro, Yeongdeungpo-gu, South Korea Type of Equipment : 3rd Generation Smart Card Key FCC ID : 2BU5I-KSC500M Model No. : KSC500M Multiple Model Name : N/A Serial number : N/A Total page of Report : 18 pages (including this page) Date of Incoming : April 28, 2026 Date of issuing : June 29, 2026 SUMMARY The equipment complies with the regulation; FCC PART 15 SUBPART C Section 15.231 This test report only contains the result of a single test of the sample supplied for the examination. It is not a generally valid assessment of the features of the respective products of the mass-production. This test report is not associated with the accreditation granted by the Korean Laboratory Accreditation Scheme (KOLAS). Tested by Su-Min, You / Senior Project Engineer ONETECH Corp. Reviewed by Tae-Ho, Kim / Chief Engineer ONETECH Corp. Approved by Jae-Ho, Lee / Director ONETECH Corp. Page 2 of 18 Report No.: OT-266-RWD-024 It should not be reproduced except in full, without the written approval of ONETECH. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) CONTENTS PAGE 1. VERIFICATION OF COMPLIANCE .............................................................................................................................. 5 2. TEST SUMMARY ............................................................................................................................................................... 6 2.1 TEST ITEMS AND RESULTS .............................................................................................................................................. 6 2.2 ADDITIONS, DEVIATIONS, EXCLUSIONS FROM STANDARDS ............................................................................................ 6 2.3 RELATED SUBMITTAL(S) / GRANT(S) ............................................................................................................................. 6 2.4 PURPOSE OF THE TEST .................................................................................................................................................... 6 2.5 TEST METHODOLOGY ..................................................................................................................................................... 6 2.6 TEST FACILITY ................................................................................................................................................................ 6 3. GENERAL INFORMATION ............................................................................................................................................. 7 3.1 PRODUCT DESCRIPTION .................................................................................................................................................. 7 3.2 ALTERNATIVE TYPE(S)/MODEL(S); ALSO COVERED BY THIS TEST REPORT. ................................................................. 7 4. EUT MODIFICATIONS ..................................................................................................................................................... 7 5. SYSTEM TEST CONFIGURATION ................................................................................................................................ 8 5.1 JUSTIFICATION ................................................................................................................................................................ 8 5.2 PERIPHERAL EQUIPMENT ............................................................................................................................................... 8 5.3 MODE OF OPERATION DURING THE TEST ....................................................................................................................... 8 5.4 CONFIGURATION OF TEST SYSTEM ................................................................................................................................ 9 5.5 ANTENNA REQUIREMENT ............................................................................................................................................... 9 6. MEASUREMENT UNCERTAINTY ............................................................................................................................... 10 7. PRELIMINARY TEST ..................................................................................................................................................... 10 7.1 AC POWER LINE CONDUCTED EMISSIONS TESTS ........................................................................................................ 10 7.2 GENERAL RADIATED EMISSIONS TESTS ...................................................................................................................... 10 8. BANDWIDTH MEASUREMENT ................................................................................................................................... 11 8.1 OPERATING ENVIRONMENT .......................................................................................................................................... 11 8.2 TEST SET-UP .................................................................................................................................................................. 11 8.3 TEST DATE ...............................................................................................................................................…

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Appendix Data 1. DUTY CYCLE 2. 20 DB BANDWIDTH 3. 99 % OCCUPIED BANDWIDTH 4. TRANSMISSION TIME 5. RADIATED EMISSION 6. FIELD STRENGTH OF FUNDAMENTAL Test ItemNo.ModeChannel Duty Cycle1433.92 MHz- Test Band433.92 MHz Antenna- Test Parameters for Channel Bandwidths Verdict Pass 1 Duty Cycle Test ItemNo.ModeChannel 20 dB Bandwidth 1433.92 MHz- Pass Verdict Test Band433.92 MHz Antenna- Test Parameters for Channel Bandwidths 1 20 dB Bandwidth Test ItemNo.ModeChannel OBW1433.92 MHz- Pass Verdict Test Band433.92 MHz Antenna- Test Parameters for Channel Bandwidths 1 OBW Test ItemNo.ModeChannel Transmission Time 1433.92 MHz- Pass Verdict Test Band433.92 MHz Antenna- Test Parameters for Channel Bandwidths 1 Transmission Time Test ItemNo.ModeChannelBandwitdhDetectorPolarization 1 -- PEAKHorizontal 2 -- PEAKVertical 3 -- PEAKHorizontal 4 -- PEAKVertical 5 -- PEAKHorizontal 6 -- PEAKVertical 7 -- PEAKHorizontal 8 -- PEAKVertical 9 -- PEAKHorizontal 10 -- PEAKVertical 11 -- PEAKHorizontal 12 -- PEAKVertical 13 -- PEAKHorizontal 14 -- PEAKVertical 15 -- PEAKHorizontal 16 -- PEAKVertical 17 -- PEAKHorizontal 18 -- PEAKVertical Test Band433.92 MHz Radiated Emission433.92 MHz Model NameKSC500M Test Parameters 1 2 Radiated Emission Radiated Emission 3 4 Radiated Emission Radiated Emission 5 6 Radiated Emission Radiated Emission 7 8 Radiated Emission Radiated Emission 9 10 Radiated Emission Radiated Emission 11 12 Radiated Emission Radiated Emission 13 14 Radiated Emission Radiated Emission 15 16 Radiated Emission Radiated Emission 17 18 Radiated Emission Radiated Emission Test ItemNo.ModeChannelBandwitdhDetectorPolarization 1 -- PEAKHorizontal 2 -- PEAKVertical Test Band433.92 MHz Field strength of Fundamental 433.92 MHz Antenna- Test Parameters 1 2 Field strength of Fundamental Field strength of Fundamental