Composer will not load module for D9

Problem/Motivation

I can load the Entity Export CSV module in a Drupal 9 project successfully by downloading the latest tar.gz file, decompressing it and then installing it from the modules directory. However, when I try to install it in a composer based installation of Drupal 9.2, then I get an error.

Steps to reproduce

Use the following to reproduce this problem. From the command line type the following.

composer require drupal/entity_export_csv

where I am using composer 1.10.20 on an Ubuntu 18.04 VM. The result is the following error text.

  [InvalidArgumentException]                        
  Could not find package drupal/entity_export_csv.  
                                                    
  Did you mean one of these?                        
      drupal/entity_reports                         
      drupal/node_export                            
      drupal/entityform                             
      drupal/export_tools                           
      drupal/commerce_export

The desired behavior is to be able to load the entity_export_csv using composer.