Colas Mineral d.o.o.

Colas Mineral d.o.o.

Varaždin, Croatia

Colas Mineral is a company specialized in sand, gravel and aggregates production. It is the part of Colas Hrvatska Group.
Sand and gravel is being extracted from the gravel pit Hrastovljan, which is located in the north of Croatia, in wide Varaždin area.
Stone aggregates are being produced in quarry Puča, which is located in the south of Croatia, in wide Zadar area.
What distinguished Colas Mineral from others?
• Modern facility for aggregates production in gravel pit Hrastovljan
• Constant high quality of produced material
• Customer oriented business
• Special products and innovation

Internship possibilities

Current number of active applications
  • June 2022
  • July 2022
  • August 2022
  • September 2022
  • October 2022
  • November 2022
  • December 2022
  • 3 months
Internship location
Hrastovljan gravel pit (Hrastovljan 145A, Hrastovljan, Varaždin county) + optional visits to company’s office in Varaždin and Zagreb, as well as Puča quarry in Zadar county.
Field work
Laboratory work
Required equipment
Required: computer, cell phone.
Preferable: working (protective) shoes.
Other protective equipment will be provided by the company.
Required education
  • mining
  • geology
Required skills and competences
Required: MS Office, English language (writing and speaking), family doctor’s certificate regarding student’s health state for the internship.
Preferable: AutoCAD (Autodesk).
Short description of the assignments/tasks that would be assigned to the Intern (description of the tasks, projects or processes that the intern will participate in and will have to carry out)?
500 - 800 characters max Interns will have the opportunity to carry out various assignments. After the induction period and learning about Company’s rules, as well as the important rules about occupational health & safety, students will be offered to choose their main task, according to their preferences. The internship will include:
- exploration phase (theory)
- mining designs and annual exploitation plans
- introduction to relevant mining legislation
- exploitation permitting process
- laboratory testing and quality control
- field work
- market research and product development
- business case development
- introduction to ISO standards
Pero Ruso,
About supervisors
Company’s nominated supervisor for the Interns is Pero Ruso,, who is working as Project manager in Colas Mineral d.o.o. from July 2016. As a part of the head office of the company, Pero oversees project management, development and implementation of mining designs, permitting process etc. Pero successfully completed internships in 2020 and 2021 as mentor.

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