Table 1.

In-depth interview guideline (Maheswari et al., 2019).

Topics	Key points to be covered	Key question to be addressed
Motivation and business principles	Profit, planet, People, and Reputation	What motivation should e-waste business have?
Compliance of safety and equipment usage	Fulfillment of internal and external safety and health requirement	Is safety and health your main concern?
Environmental awareness and performance	Evidence of concern for the environment, social health, and community harmony	What is the evidence that this business concern also to people and planet?
Strategy in environmental management	Strategy in term of efforts in managing the environment	What is your business strategy?
Challenges	Problems formulation, why e-waste business is very difficult to control?	Challenges
Expectation	SRL realization	What are your expectations?
Willingness to cooperate	Finding the type of engagement to handle e-waste management	How big your willingness to engage in SRL implementation for handling e-waste problem?