Shell Downstream. Shell Downstream is one of the worldâs largest businesses in the production and. distribution of petroleum and chemical products. In 2003, Shell embarked upon a radical change to its business model from a country centric approach to a global product line. basis.hell Downstream. Shell Downstream is one of the worldâs largest businesses in the production and. distribution of petroleum and chemical products. In 2003, Shell embarked upon a radical change to its business model from a country centric approach to a global product line. basis.
The Carlton Centre is a 732 ft or 223 meter tall building in Johannesburg, South Africa. It has been the reigning champion of tallest buildings in Africa for 39 years to this point.
Correction: January 7, 2010. An article on Tuesday about the opening of the worldâs tallest building, the Burj Khalifa in Dubai, misstated the position of Sheik Khalifa bin Zayed al-Nahyan, for whom the tower is named. He is president of the United Arab Emirates, not of Abu Dhabi.