| Item no. | Item description | Supporting references |
| SF1 | We take the price offered by the supplier into consideration when selecting our suppliers | [52] [74] |
| SF2 | We take the quality of items offered by the supplier into consideration when selecting our suppliers | [16] [52] [74] |
| SF3 | We take the supplier’s production capability into consideration when selecting our suppliers | [75] |
| SF4 | We take the supplier’s delivery performance into consideration when selecting our suppliers | [38] [52] |
| SF5 | We take the supplier’s ability to provide innovation and co-design into consideration when selecting our suppliers | [38] |
| SF6 | We take the supplier’s historical performance into consideration when selecting our suppliers | [38] |
| SF7 | We take the supplier’s capacity to respond flexibly to the firm’s requests into consideration when selecting our suppliers | [74] |
| SF8 | We take the supplier’s geographical location into consideration when selecting our suppliers | [74] |
| SF9 | We take the supplier’s reputation and financial position into consideration when selecting our suppliers | [75] |
| SF10 | We take the supplier’s post-sales services into consideration when selecting our suppliers | [75] |