You may use any manual method to convert mbox to pst but what happen if manual method doesn't and unable to convert mbox then in this case you should take help of any third software which is easy to use and effective to convert mbox to PST format.
Many software available on internet but i recommend you to use this professional MBOX to PST converter software which can easily exports your MBOX mail to PST format and other file formats like EML, EMLX, MSG, HTML, etc. This tool supports more than 20 email clients like Apple Mail, Thunderbird, Sea Monkey, Opera Mail, etc.
This tool is 100% secure for migrating MBOX mail to Outlook PST format and gives you an error-free PST file. This software also supports to keep HTML format of Meta properties, embedded image, Attachment, etc.
This Software does not make any alteration during conversion. This software is 100% safe and secure your original data during conversion. It will keep safe all data formatting as it was before conversion. Technical or non technical both can easily use this software without any technical skill.
Visit here to know more:- http://www.mboxtopstconverter.pcrecoverytools.com/