2BTKXRODSRODS

PHA Co., Ltd Covered Equipment Certification Attestation Letter 5/27/2026 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: 2BTKXRODS PHA 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. PHA 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: Hwang-cheol Ryu Title: Senior Engineer Company Name: PHA Co., Ltd Date: 5/27/2026

FCC 22-84 AGENT FOR SERVICE OF PROCESS – Single FCC ID Agreement THIS AGREEMENT (the "Agreement") is made and entered into as of the date specified below by and between: Americas Compliance Consulting LLC, dba iCertifi Principal Address: 5809 US-2, Suite B, Albeni Plaza, Priest River, Idaho 83856, United States (hereinafter, the "Provider") Principal Address: (hereinafter, the "Client") 1. RECITALS a. Provider is engaged in the business of providing regulatory compliance services, including but not limited to acting as the U.S. Agent for Service of Process under FCC 22-84 and Section 2.911(d)(7). b. Client (Manufacturer) desires to engage Provider specifically for FCC 22-84 Agent for Service of Process services for a single FCC ID, as required by U.S. Federal Communications Commission rules and regulations. c. The parties wish to set forth the terms and conditions under which such service shall be provided. 2. TERM & SCOPE a. This Agreement covers one (1) FCC ID: b. The Provider shall remain the designated U.S. Agent for Service of Process for this FCC ID as long as required under applicable FCC rules, including a minimum of two (2) years after the Client ceases marketing or importing the equipment in the United States and the conclusion of any Commission-related proceeding involving the equipment (such as an enforcement action or inquiry) and shall continue for as long as required by FCC 2.911(d)(7), subject to a minimum of two (2) years after cessation of marketing. 3. SERVICE DESCRIPTION a. Receive, review, and process all official FCC documents, legal notices, and other communications addressed to the Client regarding this FCC ID. b. Provide timely notification and forwarding of such documents to the Client. c. Prepare and provide a legally compliant Attestation Letter verifying the Provider’s role as the FCC Agent for Service of Process, as required. d. Respond to FCC inquiries and promptly notify the Client of any regulatory or compliance requirements affecting the product. Zoho Sign Document ID: 31E414DE-7PFV4WLYQFNG587XOYRY9PNLZAFJDJK1-GGLICAJ8RO 4. COMMERCIAL ARRANGEMENTS Fees for the services described in this Agreement may be invoiced to and paid by the Client or by a third party authorized by the Client under a separate commercial arrangement. Payment terms, invoicing details, and methods of payment shall be governed exclusively by the applicable commercial agreement or invoice and are not conditions of this Agreement. 1. GENERAL TERMS & CONDITIONS a. Failure to pay, insolvency, or lack of cooperation with FCC inquiries shall constitute default. b. The non-defaulting party may terminate after 30 days’ notice and opportunity to cure. c. The prevailing party is entitled to recover legal and collection costs. d. Neither party is liable for delays due to events beyond their control. e. Any disputes arising under this Agreement shall be submitted to binding arbitration under the rules of the American Arbitration Association (AAA). f. This Agreement is governed by Oregon law, without regard to conflicts principles. g. No party may assign this Agreement without prior written consent. h. If a provision is invalid, the rest remains in effect. i. Must be in writing and signed by both parties. j. All notices under this Agreement must be delivered by hand, registered mail, courier, or email with confirmation of receipt. k. Liability shall not exceed USD $5,000 or the total fees paid under this Agreement. 2. EXECUTION & SIGNATURES Provider Americas Compliance Consulting LLC, dba iCertifi Email: [email protected] Phone: +1 (866) 885-4575 Signature: Name: Paul Preston Title: President Date: Zoho Sign Document ID: 31E414DE-7PFV4WLYQFNG587XOYRY9PNLZAFJDJK1-GGLICAJ8RO Client (Manufacturer) Authorized Representative: Name: Title: Email: Phone: Signature: Date: © 2026 iCertifi Global Approvals. All rights reserved Zoho Sign Document ID: 31E414DE-7PFV4WLYQFNG587XOYRY9PNLZAFJDJK1-GGLICAJ8RO

PHA Co., Ltd 5/27/2026 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: Hwang-cheol Ryu

PHA Co., Ltd May 27, 2026 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY - FCC FCC ID: 2BTKXRODS 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: Hwang-cheol Ryu Title: Senior Engineer Company Name: PHA Co., Ltd

PHA Co., Ltd Family Certification Attestation Letter 5/27/2026 Nemko Canada Inc 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC : 2BTKXRODS Models: 76941-DC000 (BQ001-KA050), 76931-DC100, 77931-DC000, 77941-DC100, 76931-T4000, 77931-T4000, 77931-T4100, 76931-XP000, 77931-XP000, 81899-P6000, 76931-DC000 (BQ001-KA060), 76941-DC100, 77931-DC100, 77941-DC000, 76941-T4000, 77941-T4000, 77941-T4100, 76941-XP000, 77941-XP000 We hereby request Family Certification for the above mentioned Models based on them being electrically, and physically identical apart from model name/number. Model Name Differences 76941-DC000 (BQ001-KA050) Basic Model(A Type). 76931-DC100, 77931-DC000, 77941-DC100, 76931-T4000, 77931-T4000, 77931-T4100, 76931-XP000, 77931-XP000, 81899-P6000 The model is identical to basic model(A Type) except for the model name only. 76931-DC000 (BQ001-KA060) The AOP antenna location and the design of the circuits around the AOP antenna are different (B Type). 76941-DC100, 77931-DC100, 77941-DC000, 76941-T4000, 77941-T4000, 77941-T4100, 76941-XP000, 77941-XP000 The model is identical to B Type model except for the model name only. Signed: Printed name: Hwang-cheol Ryu Title: Senior Engineer Date: 5/27/2026

Page 1 of 1 IDENTIFICATION LABEL:

Page 1 of 7 Report No.: OT-265-RWD-037 It should not be reproduced except in full, without the written approval of ONETECH Corp. 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-265-RWD-037 Reception No. : 2604001321 Applicant : PHA Co., Ltd Address : 156, Gwanggyo-ro, Yeongtong-gu, Suwon-si Gyeonggi-do, 16506, South Korea Manufacturer : PHA Co., Ltd Address : 156, Gwanggyo-ro, Yeongtong-gu, Suwon-si Gyeonggi-do, 16506, South Korea Type of Equipment : RODS FCC ID. : 2BTKXRODS Model Name : 76941-DC000 (BQ001-KA050) Multiple Model Name : 76931-DC100, 77931-DC000, 77941-DC100, 76931-T4000, 77931-T4000, 77931-T4100 ,76931-XP000, 77931-XP000, 81899-P6000, 76931-DC000 (BQ001-KA060), 76941-DC100, 77931-DC100, 77941-DC000, 76941-T4000, 77941-T4000, 77941-T4100, 76941-XP000, 77941-XP000 Serial number : N/A Total page of Report : 7 pages (including this page) Date of Incoming : March 30, 2026 Date of issue : May 26, 2026 SUMMARY The equipment complies with the regulation; CFR §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 Yun-Bok, Wi / Project Engineer ONETECH Corp. Reviewed by Tae-Ho, Kim / Chief Engineer ONETECH Corp. Approved by Jae-Ho, Lee / Director ONETECH Corp. Page 2 of 7 Report No.: OT-265-RWD-037 It should not be reproduced except in full, without the written approval of ONETECH Corp. 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. MPE Calculations ............................................................................................................................................................... 6 4. CALCULATED RESULTS ............................................................................................................................................... 7 4.1 LIMIT AND CALCULATION .................................................................................................................................... 7 Page 3 of 7 Report No.: OT-265-RWD-037 It should not be reproduced except in full, without the written approval of ONETECH Corp. 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-265-RWD-037 May 26, 2026 Initial Release All Page 4 of 7 Report No.: OT-265-RWD-037 It should not be reproduced except in full, without the written approval of ONETECH Corp. 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 : PHA Co., Ltd Address : 156, Gwanggyo-ro, Yeongtong-gu, Suwon-si Gyeonggi-do, 16506, South Korea Contact Person : Hwang-cheol Ryu / Senior Engineer Telephone No. : +82-31-8064-1105 FCC ID : 2BTKXRODS Model Name : 76941-DC000 (BQ001-KA050) Brand Name : - Serial Number : N/A Date : May 26, 2026 E.U.T. DESCRIPTION RODS THIS REPORT CONCERNS Original Grant MEASUREMENT PROCEDURES KDB 447498 D01 General RF Exposure Guidance v06 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 7 Report No.: OT-265-RWD-037 It should not be reproduced except in full, without the written approval of ONETECH Corp. 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 Systems operating under the provisions of FCC 47 CFR section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. In accordance with FCC 47 CFR Part 2 Subpart J, section 2.1091 and FCC 47 CFR Part 1.1310(e)(1) this device has been defined as mobile device whereby a distance of 0.2 m normally can be maintained between the user and the device, and below RF permissible Exposure limit shall comply with, Limits for General Population/Uncontrolled Exposure. Frequency range Electric field strength Magnetic field strength Power density Averaging time (MHz) (V/m) (A/m) (mW/cm 2 ) (minutes) (A) Limits for Occupational/Controlled Exposure 0.3-3.0 614 1.63 *(100) <6 3.0-30 1842/f 4.89/f *(900/f 2 ) <6 30-300 61.4 0.163 1 <6 300-1,500 f/300 <6 1,500-100,000 5 <6 (B) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *(100) <30 1.34-30 824/f 2.19/f *(180/f 2 ) <30 30-300 27.5 0.073 0.2 <30 300-1,500 f/1500 <30 1,500-100,000 1 <30 f = frequency in MHz * = Plane-wave equivalent power density Page 6 of 7 Report No.: OT-265-RWD-037 It should not be reproduced…

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Page 1 of 32 Report No.: OT-265-RWD-036 It should not be reproduced except in full, without the written approval of ONETECH Corp. 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-265-RWD-036 Reception No. : 2604001321 Applicant : PHA Co., Ltd Address : 156, Gwanggyo-ro, Yeongtong-gu, Suwon-si Gyeonggi-do, 16506, South Korea Manufacturer : PHA Co., Ltd Address : 156, Gwanggyo-ro, Yeongtong-gu, Suwon-si Gyeonggi-do, 16506, South Korea Type of Equipment : RODS FCC ID. : 2BTKXRODS Model Name : 76941-DC000 (BQ001-KA050) Multiple Model Name : 76931-DC100, 77931-DC000, 77941-DC100, 76931-T4000, 77931-T4000, 77931-T4100 ,76931-XP000, 77931-XP000, 81899-P6000, 76931-DC000 (BQ001-KA060), 76941-DC100, 77931-DC100, 77941-DC000, 76941-T4000, 77941-T4000, 77941-T4100, 76941-XP000, 77941-XP000 Serial number : N/A Total page of Report : 32 pages (including this page) Date of Incoming : March 30, 2026 Date of issue : May 26, 2026 SUMMARY The equipment complies with the regulation; FCC PART 95 SUBPART M 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 Yun-Bok, Wi / Project Engineer ONETECH Corp. Reviewed by Tae-Ho, Kim / Chief Engineer ONETECH Corp. Approved by Jae-Ho, Lee / Director ONETECH Corp. Page 2 of 32 Report No.: OT-265-RWD-036 It should not be reproduced except in full, without the written approval of ONETECH Corp. 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 MEASURING INSTRUMENT CALIBRATION ..................................................................................................................... 6 2.6 TEST FACILITY ............................................................................................................................................................... 6 3. GENERAL INFORMATION ............................................................................................................................................ 7 3.1 PRODUCT DESCRIPTION ................................................................................................................................................. 7 3.2 EUT MODIFICATIONS .............................................................................................................................................. 7 3.3 ALTERNATIVE TYPE(S)/MODEL(S); ALSO COVERED BY THIS TEST REPORT. ................................................................ 7 4. TEST METHODOLOGY .................................................................................................................................................. 8 4.1 EUT DESCRIPTION ......................................................................................................................................................... 8 4.2 EUT TEST MODE ............................................................................................................................................................ 8 4.3 CONFIGURATION OF TEST SYSTEM ............................................................................................................................... 9 4.4 ANTENNA REQUIREMENT .............................................................................................................................................. 9 5. FAR FIELD DISTANCE(R m ) .......................................................................................................................................... 10 6. MEASUREMENT UNCERTAINTY .............................................................................................................................. 11 7. LIST OF TEST EQUIPMENT ........................................................................................................................................ 12 8. DESCRIPTION OF TESTS ............................................................................................................................................. 13 8.1 OCCUPIED BANDWIDTH ............................................................................................................................................... 13 8.2 MAXIMUM POWER (EIRP) .......................................................................................................................................... 14 8.3 UNWANTED SPURIOUS EMISSIONS ............................................................................................................................... 16 8.4 FREQUENCY STABILITY .............................................................…

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PHA Co., Ltd Antenna Type and Configuration Antenna-On-Package (AOP) Antenna Gain (dBi) ~10.87dBi Radiation Pattern / Directivity Directional Antenna Polarization Characteristics Linear (Not provided in the datasheet) Connection Type with Transmitter Integrated (Built-in) Antenna Manufacturer and Model Name Texas Instruments (TI), AWR1843AOP Gain Measurement Institution Internal to TI