FCC ID: 2A3B9SFM11R2D Sigfox module

Theodomiro Porto da Fonseca St., 3101, Building 10 - Room 107 and 108, Cristo Rei 93022 715 So Leopoldo RS Brasil Fone: +55 51 2160 7180 CNPJ: 27.483.628/0001-41 Agent Authorization Address: Theodomiro Porto da Fonseca, 3101, Building 10, Sao Leopoldo 93022-715 Brazil Company: Ayga Tecnologia S.A. Product Name: SFM11R2D Model Number(s): SFM11R2D Product Description: Sigfox module. We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of the above-named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature:

Date:

19 November 2021 Name:

Joo Ricardo Wagner de Moraes Title:

CTO Company:

Ayga Tecnologia S.A. AYGA TECNOLOGIA S.A. - 27.483.628/0001-41

54-33, Dongtanhana 1-gil, Hwaseong-si, Gyeonggi-do, Sf SEONG JI Republic of Korea, (Zip : 18423) SEONG JI INDUSTRIAL CO.,LID Te] ) 031-239-8194 Date: 25 November 2021 Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Attn: OET Dept. Subject: Authorization of Change in Identification Reference FCC ID: 2AS8LSFM11R2D Dear Sir/Madam, This letter grants authorization for representatives of AYGA Tecnologia S.A. to apply to the FCC for a change in identification as specified under CFR Title 47 2.933(b) of the FCC rules. This authorization applies to SEONG JI INDUSTRIAL CO., LTD with Sigfox module and FCC ID 2AS8LSFM11R2D. We are aware that AYGA Tecnologia S.A. intends to market the above referenced product under their own FCC ID. Sincerely, Le Signature Lee Sangyoung Senior Researcher SEONG JI INDUSTRIAL CO., LTD

Theodomiro Porto da Fonseca St., 3101, Building 10 - Room 107 and 108, Cristo Rei 93022 715 So Leopoldo RS Brasil Fone: +55 51 2160 7180 CNPJ: 27.483.628/0001-41 Date: 24 November 2021 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Reference:

FCC ID: 2A3B9SFM11R2D Dear Sir/Madam, Subject:

Request for 2.933Change in identification of equipment AYGA Tecnologia S.A. requests a Change in Identification for a currently approved device. This application will establish a new FCC ID for purpose of marketing. The original Grant for SEONG JI INDUSTRIAL CO., LTD, under FCC ID: 2AS8LSFM11R2D with a Grant Date of 07/18/2019 will remain in effect. An authorization letter from the original Grantee (SEONG JI INDUSTRIAL CO., LTD) is attached. The application under FCC ID: 2AS8LSFM11R2D was based on the original filing from WISOL CO., LTD, under FCC ID: 2ABA2SFM11R2D. We attest that the equipment is electrically identical. Only the FCC ID is different. The original test results under FCC ID: 2ABA2SFM11R2D are applicable and continue to be representative of this device. The following files are provided as attachments:

Cover letter giving permission from original Applicant for Change in ID External photos showing no physical changes to this device New FCC identification label and its location. Thanks and Best Regards, Joo Ricardo Wanger de Moraes / CTO AYGA Tecnologia S.A. Theodomiro Porto da Fonseca, 3101, Building 10 Sao Leopoldo 93022-715 Brazil

+55 51 9926-9433 / joao.moraes@ayga.com.br AYGA TECNOLOGIA S.A. - 27.483.628/0001-41

Theodomiro Porto da Fonseca St., 3101, Building 10 - Room 107 and 108, Cristo Rei 93022 715 So Leopoldo RS Brasil Fone: +55 51 2160 7180 CNPJ: 27.483.628/0001-41 Oakland Mills Road Office of Engineering Technology Federal Communications Commission 7435 Columbia, MD 21046 USA Date: 19 November 2021 Subject; Request for Confidentiality FCC ID: 2A3B9SFM11R2D To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered proprietary information in the operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure External Photos Test Setup Photos Internal Photos User Manual In addition to the above-mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business-sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format, and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Title:

CTO Name:

Joo Ricardo Wagner de Moraes AYGA TECNOLOGIA S.A. - 27.483.628/0001-41