SharePoint Online: Import CSV File into SharePoint List using PowerShell-CSOM

#Load SharePoint CSOM Assemblies
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"

##Variables for Processing
$SiteUrl = "https://crescent.sharepoint.com/sites/POC/"
$ListName="Contacts"
$ImportFile ="c:\Scripts\EmpData.csv"
$UserName="Salaudeen@crescent.com"
$Password ="Password goes here"

#Setup Credentials to connect
$Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($UserName,(ConvertTo-SecureString $Password -AsPlainText -Force))

#Set up the context
$Context = New-Object Microsoft.SharePoint.Client.ClientContext($SiteUrl) 
$Context.Credentials = $credentials

#Get the List
$List = $Context.web.Lists.GetByTitle($ListName)

#Get the Data from CSV and Add to SharePoint List
$data = Import-Csv $ImportFile
Foreach ($row in $data) {

    #add item to List
    $ListItemInfo = New-Object Microsoft.SharePoint.Client.ListItemCreationInformation
    $Item = $List.AddItem($ListItemInfo)
    $Item["FirstName"] = $row.FirstName
    $Item["LastName"] = $row.LastName
    $Item["Department"] = $row.Department
    $Item["Mobile"] = $row.Mobile
    $Item.Update()
    $Context.ExecuteQuery() 

}
Write-host "CSV data Imported to SharePoint List Successfully!"