The four "Carbon Family" indices primarily cover industries such as power equipment and utilities. Judging by their names, their keywords are "carbon neutrality," "green power," "new energy," and "batteries," reflecting their respective characteristics in industry distribution.

The CSI Shanghai SE Carbon Neutrality Index is a more comprehensive index, spanning both "high-carbon reduction" and "deep low-carbon" sectors. It calculates contributions to carbon neutrality based on a carbon reduction model, allocating the number and weight of stock samples across these two sectors. According to CSI secondary industry classifications, power equipment, utilities, non-ferrous metals, and chemicals collectively account for over 75%, making it the most balanced in industry distribution among the four indices.

The CSI New Energy Index focuses more on the "deep low-carbon" sector, including listed companies involved in renewable energy production, new energy applications, energy storage, and new energy interaction equipment. Under CSI secondary industry classifications, power equipment accounts for over 70%.

The other two indices concentrate on "electricity" and lean more toward the deep low-carbon sector.

Among them, the SZSE New Energy Battery Index specifically selects companies in battery manufacturing, energy storage inverters, battery system integration, and battery thermal management/fire protection, excluding upstream and midstream battery segments, making it a pure energy storage-themed index.

The CSI Green Power Index mainly covers companies engaged in photovoltaic, wind, hydro, and other green power transformation initiatives on the generation side, all of which fall under the utilities industry, accounting for 100%.