Ultratop is an organization which generates and publishes the official record charts in Belgium, and it is also the name of most of those charts. Ultratop is a non-profit organization, created on the initiative of the Belgian Entertainment Association (BEA), the Belgian member organization of the International Federation of the Phonographic Industry. Two parallel set of charts are concurrently produced and published, one on behalf of Belgium's Dutch-speaking Flanders region, and the other catering to the nation's French-speaking region of Wallonia. 

The music charts produced by Ultratop organization are separated along regional-language boundaries, an unusual division that is justified by the cultural differences in Belgium. So it is that the Dutch-speaking Flanders region has one set of charts of record activity there, while the French-speaking Wallonia region has another set to measure popularity in those provinces. 

The charts are broadcast on several Belgian radio stations, and on TV stations TMF in Flanders and Plug RTL in Wallonia. 

Ultratop creates charts based on record sales of around 500 retail outlets and legal digital downloads. Currently GfK is the market observer of the charts. The chart broadcasts on Radio Contact on Saturdays from 12:00 to 14:00. The combined number of Ultratop chart listeners on the various radio or TV stations exceeds two million every week. To celebrate the 10th anniversary of the charts in 2005, a jubilee book was published. It covers all 15,282 singles from 5,882 artists thus far.
Ultratop makes charts based on album sales of how many retail outlets and downloads?
How many weekly listeners does the company have?
What did they celebrate in 2005?
What dud they publish as part of that celebration?
How many singles did it over?
By how many singers?
Where is Ultratop?
Are they a for-profit business?
One chart is for French speaking people from what region?
And where is the Dutch speaking area?
How does Ultratop separate charts?
Is that a common type of division?
But is it justified?
By what, in Belgium?
What is the Flanders TV station?
And where is RTL?
What time does Radio Contact air on Saturdays?
around 500
Ultratop creates charts based on record sales of around 500 retail outlets and legal digital downloads
over two million
The combined number of Ultratop chart listeners on the various radio or TV stations exceeds two million every week
the 10th anniversary of the charts
To celebrate the 10th anniversary of the charts in 2005
a jubilee book
To celebrate the 10th anniversary of the charts in 2005, a jubilee book was published
15,282
 It covers all 15,282 singles
5,882
It covers all 15,282 singles from 5,882 artists thus far.
Belgium
Ultratop is an organization which generates and publishes the official record charts in Belgium,
no
Ultratop is a non-profit organization,
Wallonia
French-speaking Wallonia region
Flanders
Dutch-speaking Flanders
regional-language boundaries
The music charts produced by Ultratop organization are separated along regional-language boundaries, 
no
 an unusual division that is justified by the cultural differences in Belgium
yes
 an unusual division that is justified by the cultural differences in Belgium
the cultural differences
 justified by the cultural differences in Belgium
TMF
TV stations TMF
Wallonia
Plug RTL in Wallonia
12:00 to 14:00
Radio Contact on Saturdays from 12:00 to 14:00