The main reasons why Adidas and Nike produce in Vietnam, Cambodia and Indonesia are as follows:

1. Low labor costs: The labor costs in these countries are lower than those in other countries such as China. Therefore, production costs are also reduced accordingly. This is an important factor for brands where cost-effectiveness is a factor.

2. Obtain tax incentives: In countries such as Vietnam, Cambodia and Indonesia, some brands can obtain certain tax incentives, which is one of the reasons that attract brands to establish production bases in these countries.

3. Exploring the Southeast Asian market: The Southeast Asian market has gradually become the focus of global brands. Therefore, for some brands, establishing production bases in these countries can help them better enter the local market and expand their brand influence. .

4. Increase brand awareness: Producing in countries such as Vietnam, Cambodia and Indonesia can also increase the brand's awareness in these countries, which is beneficial to the long-term development of the brand.

In short, the main reason why Adidas and Nike produce in Vietnam, Cambodia and Indonesia is because these countries have low labor costs, can obtain tax incentives, develop the Southeast Asian market and increase brand awareness and other advantages.