Provide at least 2 suppliers for Nespresso and what materials do they supply?

Rainforest Alliance and Eugster/Frismag

Explanation:

Rainforest Alliance - Nespresso sources their coffee beans from a variety of farmers chief amongst them being the cooperative known as the Rainforest Alliance. Since 2003, Nespresso has partnered with the RA with the result being that they source over 40% of their coffee beans from RA Certified Farms.

Eugster/Frismag - Nespresso machines are made by a number of companies under the company's license such as Krups, Sage and Magimix. Eugster/Frismag being one of the largest coffee machine producers however, is a major supplier of Nespresso machines due to their quality standards and account for over 20% of Nespresso branded machines.

answer; rapid growth in buyer demand and high buyer switching cost;