As the ESDC website says:
- Employers must pay $1,000 for each position requested (e.g. $1,000 x number of positions=total payment) to cover the cost of processing a dual intent LMIA application.
- The processing fee does not apply to employers choosing ONLY to support a foreign national's application for a permanent resident visa.
- The fee also does not apply to higher-skilled positions related to on-farm primary agriculture such as farm managers/supervisors and specialized livestock workers (specifically National Occupational Classification (NOC) codes 8251, 8252, 8253, 8254 and 8256).
http://www.esdc.gc.ca/eng/jobs/foreign_workers/higher_skilled/permanent/index.shtml#tab2
There are no other exemptions.