Saltillo, Mexico - February 2020 - Under the motto "Young people who leave their mark", the XIII edition of "Expotec" was held, a fair of projects for students of the last year of the technological high school diploma studies from the Don Bosco Technological Institute (INTEC) of the Salesian work of Saltillo. The inauguration of "Expotec" took place on 11 February in the presence of the institution's authorities, representatives of the city's local and commercial authorities who supported Don Bosco's work. For three days, the young people exhibited their innovative projects, produced with the skills and knowledge acquired at the Salesian institute, and they explained their projects to visitors, students from various schools in the city and family members.