The answer is yes.  

For Android users: 

Install the Meross app on your Android smartphone and add the HomeKit device as you would add a regular Meross smart device. Then link your Meross account to Amazon Alexa or Google Assistant. If you want to use HomeKit after setup on Android. Just launch your Apple Home app on your iPhone and scan or input the setup code printed on the device or user manual. No reset or extra configuration is needed.  

For iOS users:

Install the Meross app on your iPhone. After setting up the HomeKit device with your Apple Home app, connect your iPhone to the same home Wi-Fi as your HomeKit device, and launch your Meross app, tap "+" on the top right. It will help you find devices under the same Wi-Fi network. Just tap "Add" and you'll be able to manage it in the Meross app. Then link your Meross account to Amazon Alexa or Google Assistant.
*Note: If you want to skip the HomeKit setup, please refer to this FAQ.