【主干】countries are looking at such “extended producer responsibility” programs.【修饰成分】which

can include taxes on new products that do not have a certain percentage of recycled plastic, along with having producers pay toward the costs of collecting and recycling their products 为定语从句，修饰前面的“extended producer responsibility” programs。其中that do not have a certain percentage of recycled plastic that在从句中做主语，为定语从句，修饰前面的new products，翻译时可以放到名词前面，译为“可回收塑料占比不达标的新产品”。 along with为并列连词，和前面的taxes on new products相并列，都是include包含的内容。【翻译】各国正在考虑“生产者责任延伸计划”，其中包括对可回收塑料占比不达标的新产品征税，同时要求生产商支付收集和回收产品的成本。