Patch application on EHP4

Hello All,

We are on EPH4 for our ERP 6 system. Now the requirement is to patch the following components:

Current Patch Level:

SAP_ABA u2013 SAPKA70103

EA-HRGXX u2013 SAPK-60405INEAHRGXX

Desired Patch Level

Support Package SAPKA70105

Support Package SAPK-60410INEAHRGXX

Is it possible to apply the Support Package Stack on EHP4 system? If no, is it ok to patch these 2 components alone?

Please Advise.

Thanks,

Antar