Company: SGBAF
Filing Date: 2025-04-23
Form Type: DRS/A
Source: 0000950123-25-003652
Chunk: 291

Company: SES S.A.
Filing Date: 2025-04-23
Form: DRS/A
Chunk 291
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,000 |     |                 |  36,800 |     |       |  19,200 |     |       |    96,000 |
| Total                            |     |              | 531,600 |     |                 | 435,200 |     |       | 241,700 |     |       | 1,208,500 |

Foreign Private Issuer Status Upon the initial filing of the registration statement of which this prospectus forms a part, at least a majority of the outstanding voting securities of SES were directly and indirectly owned of record by non-U.S.residents. In addition, at such time, U.S. residents did not comprise a majority of our executive officers or directors, and a majority of our assets were located, and our business was principally administered, outside of the United States. As a result, we were a foreign private issuer. We expect that we will continue to be a foreign private issuer immediately after the Closing. Under Rule 405 under the Securities Act, the determination of foreign private issuer status is made annually on the last business day of an issuer’s most recently completed second fiscal quarter and, accordingly, the next determination will be made with respect to us on June 30 after the effectiveness of the registration statement of which this prospectus forms a part. For so long as we qualify as a foreign private issuer, we will be exempt from certain provisions of the Exchange Act that are applicable to U.S. domestic public companies, including:

| • |     | the sections of the Exchange Act regulating the solicitation of proxies, consents or authorizations in respect of 
 a security registered under the Exchange Act;                                                                     |

| • |     | the sections of the Exchange Act requiring insiders to file public reports of their stock ownership and trading 
 activities and imposing liability for insiders who profit from trades made within a short period of time;       |

| • |     | the rules under the Exchange Act requiring the filing with the SEC of an annual report on Form 10-K, quarterly reports on Form 10-Q containing unaudited financial and other specified information, or current reports on Form 8-K, 
 upon the occurrence of specified significant events; and                                                                                                                                                                            |

222

Confidential Treatment Requested by SES

Pursuant to 17 C.F.R. Section 200.83

Regulation Fair Disclosure or Regulation FD, which regulates selective disclosure of material
nonpublic information by issuers.

SES will be required to file an annual report on Form 20-F
within four months