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@@ -89,6 +89,7 @@ Items with :green_heart: indicate open source projects.
 - :green_heart:[Kruise](https://github.com/openkruise/kruise) :fire::fire::fire::fire: - Kruise consists of several controllers which extend and complement the Kubernetes core controllers for workload management.
 - :green_heart:[Grafana Tanka](https://github.com/grafana/tanka) :fire::fire::fire: - The clean, concise and super flexible alternative to YAML for your Kubernetes cluster.
 - :green_heart:[KubeDirector](https://github.com/bluek8s/kubedirector) :fire::fire: - KubeDirector uses standard Kubernetes (K8s) facilities of custom resources and API extensions to implement stateful scaleout application clusters.
+- :green_heart:[The Hierarchical Namespace Controller](https://github.com/kubernetes-sigs/multi-tenancy/tree/master/incubator/hnc) :fire::fire::fire: - Hierarchical namespaces make it easier to share your cluster by making namespaces more powerful.
 
 ### Secrets Management
 - :green_heart:[Kubernetes External Secrets](https://github.com/godaddy/kubernetes-external-secrets) :fire::fire::fire: - Kubernetes External Secrets allows you to use external secret management systems, like AWS Secrets Manager or HashiCorp Vault, to securely add secrets in Kubernetes.
@@ -206,6 +207,7 @@ Items with :green_heart: indicate open source projects.
 - [Introduction to Using Google Kubernetes Engine; Explain Like I’m Five!](https://medium.com/faun/google-kubernetes-engine-explain-like-im-five-1890e550c099) - Creating your first managed Kubernetes cluster on Google Kubernetes Engine using Terraform.
 - [Amazon EKS Best Practices Guide for Security](https://aws.github.io/aws-eks-best-practices/) - This guide provides advice about protecting information, systems, and assets that are reliant on EKS while delivering business value through risk assessments and mitigation strategies.
 - [Amazon EKS Node Drainer](https://github.com/aws-samples/amazon-k8s-node-drainer) - A guide and an example to cordon and evict all evictable pods from an EC2 node being terminated.
+- [Kubernetes Working Group for Multi-Tenancy](https://github.com/kubernetes-sigs/multi-tenancy) - This is a working place for multi-tenancy related proposals and prototypes.
 
 ### Blogs and Videos
 - [10 most common mistakes using kubernetes](https://blog.pipetail.io/posts/2020-05-04-most-common-mistakes-k8s/)