YP.MN developed the tool that falls into the Business category. This application was downloaded and set up by over 100 users and the latest stable release was on Jul 4, 2018. It's free of charge to download the installer of YP.MN Yellow Pages Mongolia, also, you can take a look at users' reviews on Droid Informer. The app works fine on Android 2.3.3 and above.
The app is completely secure for downloading.