Barry Callebaut’s company history is a useful lead for research for bullet one of Edexcel’s Paper 3 Exam on the Chocolate Confectionery Market – highlighting the significant investment the company has made over the last 20 years: https://www.barry-callebaut.com/about-us/company-overview/company-history-0.  
https://www.apt-initiatives.com/Edexcel_Paper_3_Context_2018