Blockco signed an ‘MOU for Blockchain-Based Real Estate Service and Platform Development’ with Realty Bank, a Real Estate service provider.
You can find more information here:
https://hankyung.com/it/article/202008060323g…
It will use InstSign, which uses Aergo Mainnet.
Here you can find website of Realty Bank:
Here you can find website of Blocko: