diff --git a/centos-repos.spec b/centos-repos.spec
index acf23caee41c97af2d764ed4a532cec9f452e139..0c76ae1c600f51d24577b82adb45110aa66dbf7b 100644
--- a/centos-repos.spec
+++ b/centos-repos.spec
@@ -4,7 +4,7 @@
 Name:           centos-repos
 Epoch:          %{epoch}
 Version:        8
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        CentOS package repositories
 License:        GPLv2
 URL:            https://centos.org
@@ -13,6 +13,7 @@ BuildArch:      noarch
 Source100:      LICENSE
 Source101:      RPM-GPG-KEY-centosofficial
 Source102:      RPM-GPG-KEY-centostesting
+Source103:      RPM-GPG-KEY-CentOS-SIG-Extras
 
 # CentOS Linux repos
 Source200:      CentOS-Linux-BaseOS.repo
@@ -163,6 +164,12 @@ echo "s8" > %{buildroot}%{_sysconfdir}/dnf/vars/cernstream8
 
 
 %changelog
+* Fri Mar 25 2022 Ben Morrice <ben.morrice@cern.ch> - 8-5
+- CERN rebuild
+
+* Tue Mar 15 2022 Fabian Arrotin <arrfab@centos.org> - 8-5
+- Added new extras-common repo and dedicated SIG Extras key
+
 * Mon Jan 24 2022 Alex Iribarren <Alex.Iribarren@cern.ch> - 8-4
 - CERN rebuild
 
diff --git a/src/CentOS-Stream-Extras.repo b/src/CentOS-Stream-Extras.repo
index 685f0e2195e4df028269fd7c292d8dcb0cc11a94..ec1338be2c035b6f5d3de1774f06719ec85c2264 100644
--- a/src/CentOS-Stream-Extras.repo
+++ b/src/CentOS-Stream-Extras.repo
@@ -16,3 +16,17 @@ baseurl=http://linuxsoft.cern.ch/cern/centos/s8-testing/extras/$basearch/os
 gpgcheck=1
 enabled=0
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
+
+[extras-common]
+name=CentOS Stream $releasever - Extras common packages
+baseurl=http://linuxsoft.cern.ch/cern/centos/$cernstream8/extras/$basearch/extras-common
+gpgcheck=1
+enabled=0
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Extras
+
+[extras-common-testing]
+name=CentOS Stream $releasever - Extras common packages
+baseurl=http://linuxsoft.cern.ch/cern/centos/s8-testing/extras/$basearch/extras-common
+gpgcheck=1
+enabled=0
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Extras
diff --git a/src/RPM-GPG-KEY-CentOS-SIG-Extras b/src/RPM-GPG-KEY-CentOS-SIG-Extras
new file mode 100644
index 0000000000000000000000000000000000000000..e15f9a82a77a001205f71a172e36205ef2430ae1
--- /dev/null
+++ b/src/RPM-GPG-KEY-CentOS-SIG-Extras
@@ -0,0 +1,37 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v2.0.22 (GNU/Linux)
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+-----END PGP PUBLIC KEY BLOCK-----