Proposed Field Development in Block 11B/12B and Associated Production Activities, South Africa

Main Street 1549 and its JV partners discovered gas-condensate resources in Block 11B/12B, located ~75 km off the South Coast of South Africa roughly between Mossel Bay and Cape St Francis, through exploration activities, including the Brulpadda (2019) and Luiperd (2020) wells. Following these discoveries, the JV applied for a Production Right in 2022 and initiated an ESIA and Environmental Authorisation process for field development.

In 2024, TotalEnergies, QatarEnergy, and CNRI withdrew from the project, and Main Street assumed operatorship. Main Street then proposed a limited survey campaign to gather environmental and technical data to support future development planning. The ESIA scope has since been expanded to assess the full development of the Paddavissie Fairway and its potential environmental and socio-economic impacts. Main Street elected to assessed two conservative full-field development scenarios for the Paddavissie Fairway to define the maximum reasonable development envelope and ensure the ESIA captures the upper limit of potential impacts.

This expansion in scope requires the withdrawal of the previous EA application (Ref 12/4/013) for the survey campaign and the submission of a new EA application and associated ESIA process for the full development scope, which will be undertaken on 14 September 2026.

In terms of the EIA Regulations, 2014 (as amended), the proposed project requires EA as it triggers Listing Notices 1 (R.983 of 2014 as amended), 2 (R.984 of 2014 as amended) and 3 (R.985 of 2014 as amended). Consequently, a Scoping and EIA Process will be followed.

SLR Consulting (South Africa) (Pty) Ltd (SLR) has been appointed by Main Street to undertake the ESIA process for the proposed project.

Status

Stakeholders are hereby notified of the submission of a new application by Main Street 1549 (Pty) Ltd (Main Street) for Environmental Authorisation (EA) to undertake the proposed Block 11B/12B Field Development Project and associated production activities offshore of South Africa's south coast. This also provides notice of the associated Environmental and Social Impact Assessment (ESIA) process, including the availability of the Draft Scoping Report for public review and comment from 14 September - 15 October 2026, as well as an invitation to attend public open days and meetings.

Please submit your comments to SLR through the details provided above.

Stakeholders are further advised that the previous EA application for the survey campaign (Reference No. 12/4/013) has been withdrawn and will no longer be considered as part of the environmental authorisation process.

Please download the available documents below for more information.

By providing your personal information to submit a comment or RSVP to attend meetings and/open days, you will be included in the SLR an Interested and Affected Party (I&AP) database, and you consent to SLR managing your information in accordance with the Protection of Personal Information Act 4 of 2013. It is assumed that as an I&AP for this Project you authorise SLR to retain and use your Personal Information as part of a contact database for this and/or other Social and Environmental Impact Assessments (ESIA) and that you confirm your acceptance for SLR to contact you regarding this and/or other ESIA processes. SLR will not process your Personal Information, other than as permitted or required by ESIA processes, or as required by law or public policy. SLR will use reasonable, appropriate security safeguards to protect Personal Information, and to reasonably prevent any damage to, loss of, or unauthorised access or disclosure of Personal Information, other than as required for ESIA processes or as required by any Law or public policy. You may request for your Personal Information to be deleted from the I&AP database at any time by contacting SLR.