Various flavors of chocolates are seen at the 6th edition of the Chocolate Fair in Brussels, Belgium, on Feb. 22, 2019. The 6th edition of the Chocolate Fair (Le Salon du Chocolat) kicked off in Brussels on Thursday. More than 130 chocolatiers, pastry chefs, confectioners, designers and cocoa experts are here to share and exhibit chocolate in all its delectable forms. (Xinhua/Zheng Huansong)

Visitors select chocolates at the 6th edition of the Chocolate Fair in Brussels, Belgium, on Feb. 22, 2019. The 6th edition of the Chocolate Fair (Le Salon du Chocolat) kicked off in Brussels on Thursday. More than 130 chocolatiers, pastry chefs, confectioners, designers and cocoa experts are here to share and exhibit chocolate in all its delectable forms. (Xinhua/Zheng Huansong)

A visitor selects chocolates for tasting at the 6th edition of the Chocolate Fair in Brussels, Belgium, on Feb. 22, 2019. The 6th edition of the Chocolate Fair (Le Salon du Chocolat) kicked off in Brussels on Thursday. More than 130 chocolatiers, pastry chefs, confectioners, designers and cocoa experts are here to share and exhibit chocolate in all its delectable forms. (Xinhua/Zheng Huansong)

A girl makes chocolates at the 6th edition of the Chocolate Fair in Brussels, Belgium, on Feb. 22, 2019. The 6th edition of the Chocolate Fair (Le Salon du Chocolat) kicked off in Brussels on Thursday. More than 130 chocolatiers, pastry chefs, confectioners, designers and cocoa experts are here to share and exhibit chocolate in all its delectable forms. (Xinhua/Zheng Huansong)

An exhibitor shows various flavors of chocolates at the 6th edition of the Chocolate Fair in Brussels, Belgium, on Feb. 22, 2019. The 6th edition of the Chocolate Fair (Le Salon du Chocolat) kicked off in Brussels on Thursday. More than 130 chocolatiers, pastry chefs, confectioners, designers and cocoa experts are here to share and exhibit chocolate in all its delectable forms. (Xinhua/Zheng Huansong)

Various forms of chocolates are seen at the 6th edition of the Chocolate Fair in Brussels, Belgium, on Feb. 22, 2019. The 6th edition of the Chocolate Fair (Le Salon du Chocolat) kicked off in Brussels on Thursday. More than 130 chocolatiers, pastry chefs, confectioners, designers and cocoa experts are here to share and exhibit chocolate in all its delectable forms. (Xinhua/Zheng Huansong)

Various cartoon figures made of chocolate are seen at the 6th edition of the Chocolate Fair in Brussels, Belgium, on Feb. 22, 2019. The 6th edition of the Chocolate Fair (Le Salon du Chocolat) kicked off in Brussels on Thursday. More than 130 chocolatiers, pastry chefs, confectioners, designers and cocoa experts are here to share and exhibit chocolate in all its delectable forms. (Xinhua/Zheng Huansong)

Visitors select chocolates at the 6th edition of the Chocolate Fair in Brussels, Belgium, on Feb. 22, 2019. The 6th edition of the Chocolate Fair (Le Salon du Chocolat) kicked off in Brussels on Thursday. More than 130 chocolatiers, pastry chefs, confectioners, designers and cocoa experts are here to share and exhibit chocolate in all its delectable forms. (Xinhua/Zheng Huansong)

Visitors select chocolates at the 6th edition of the Chocolate Fair in Brussels, Belgium, on Feb. 22, 2019. The 6th edition of the Chocolate Fair (Le Salon du Chocolat) kicked off in Brussels on Thursday. More than 130 chocolatiers, pastry chefs, confectioners, designers and cocoa experts are here to share and exhibit chocolate in all its delectable forms. (Xinhua/Zheng Huansong)

A chocolate bunny is seen at the 6th edition of the Chocolate Fair in Brussels, Belgium, on Feb. 22, 2019. The 6th edition of the Chocolate Fair (Le Salon du Chocolat) kicked off in Brussels on Thursday. More than 130 chocolatiers, pastry chefs, confectioners, designers and cocoa experts are here to share and exhibit chocolate in all its delectable forms. (Xinhua/Zheng Huansong)